GroupDIY

Project Specific Discussions => Microphones => Topic started by: poctop on January 17, 2018, 09:37:40 AM

Title: D-47 Tube Mic Kit DIY Solution
Post by: poctop on January 17, 2018, 09:37:40 AM
https://www.instagram.com/poctop/


More Info Here
https://groupdiy.com/index.php?topic=49675.0


(https://www.dropbox.com/s/abyn8ucirza5fsj/IMG_4906.jpg?raw=1)


(https://www.dropbox.com/s/kt290udt7qit07e/IMG_5609.JPG?raw=1)


(https://www.dropbox.com/s/ydcacsgoi13yols/IMG_5608.JPG?raw=1)






Mechanical Mic  kits are back in stock, :)

Matt Head Style is Now Available Limited Qty initial run
(https://www.dropbox.com/s/v93gxr8t196q5wh/IMG_5469.JPG?raw=1)

D47 Mechanical Kit
(https://www.dropbox.com/s/47tm59755l5fajs/IMG_5546.JPG?raw=1)

For the First Time U48 is also available in limited Qty initial run
(https://www.dropbox.com/s/29pv1g2xll64d7f/IMG_5545.JPG?raw=1)

U48 Mechanical Kit


(https://www.dropbox.com/s/29ilz3udh4cnmlu/IMG_5415.JPG?raw=1)

(https://www.dropbox.com/s/x3f4dbi1uu85651/IMG_5440.JPG?raw=1)

(https://www.dropbox.com/s/moybdwzd68u9hej/IMG_5443.JPG?raw=1)



Includes


-Wooden Box
-M23 German Binder Mic Side
-Capsule Holder
- Tube Socket of your Choice ( Dual , Noval, Steel Can) and Mounting Hardware
- PCB or your choice  for different Transformer option and a Total of 3 different Circuit ( ef8XX-EF14, Dual 6028, EF12)
-Custom Heatsink on Request for Dropping resistor for original circuit or Dual 6028 circuit
- Plain Metal Deck supplied on request.
- Layout Diagrams of your choice.
-799 USD Per Kit


(https://www.dropbox.com/s/41g3fifvozja7z5/IMG_2958.JPG?raw=1)

(https://www.dropbox.com/s/6m7xxfwe04woh4z/IMG_2959.JPG?raw=1)

(https://www.dropbox.com/s/n2e8au6al23wz5s/IMG_2791.JPG?raw=1)

(https://www.dropbox.com/s/4s4elw5m7lpavxi/IMG_2822.JPG?raw=1)

(https://www.dropbox.com/s/5sjy75vgdik6xxa/IMG_2897.JPG?raw=1)

(https://www.dropbox.com/s/q71ehw3uq7y7dlc/IMG_2898.JPG?raw=1)

(https://www.dropbox.com/s/nos3agf7523301h/IMG_2901.JPG?raw=1)

(https://www.dropbox.com/s/ze72dfjh3bgb8a7/5-layouts.jpg?raw=1)




DOC


Build Info and layouts




Dropping Resistor Installation  Note : Washer Below Heatsink.


(https://www.dropbox.com/s/eookcg96l0540vl/HeatSink%20Installation%202.jpg?raw=1)


M23 Binder Mic Side Insert Removal
https://www.dropbox.com/s/h9wmp28vwu0f3l8/Binder%20M23%20Insert%20Removal.zip?dl=0


Title: Re: Feeler : D47 Tube Mic Kit DIY
Post by: rockinrob86 on January 17, 2018, 09:51:53 AM
how much?  These look awesome, really great work.  I love my D-ef47 so much!
Title: Re: Feeler : D47 Tube Mic Kit DIY
Post by: Wordsushi on January 17, 2018, 12:03:29 PM
Wow! Yes, I second the request for a price? Also, what would be included in the kit?
Title: Re: Feeler : D47 Tube Mic Kit DIY
Post by: Delta Sigma on January 17, 2018, 12:20:44 PM
I'm in - pending price of course. I'm not in a rush so I'll pass on the prototype as I'm sure there are others who would love to get their hands on it.

Dany, can you comment on the differences between the parallel 408A and EF80X amps? I was planning an EF47 for my next mic but I'd like to know yours and others' opinions on the two amps. Have you tried the two amps with the same capsule and transformer?

I assume from the photos that the kits will allow these options as well as steel tubes.
Title: Re: Feeler : D47 Tube Mic Kit DIY
Post by: jarvis on January 17, 2018, 12:30:37 PM
That looks beyond stunning, great work!
Will you offer both PCB versions you do now?
And yeah, the  price would be nice to know.

Cheers
Jannis
Title: Re: Feeler : D47 Tube Mic Kit DIY
Post by: Recording Engineer on January 17, 2018, 01:37:01 PM
I’m in for a capsule and body whenever they come available.
Title: Re: Feeler : D47 Tube Mic Kit DIY
Post by: Rlucas41 on January 17, 2018, 04:04:31 PM
very Interested!!!
Very COOL!!!
Title: Re: Feeler : D47 Tube Mic Kit DIY
Post by: poctop on January 18, 2018, 07:43:40 AM
Kits has been all sold for Now ,
Thanks,
best,
DAn,


Title: Re: Feeler : D47 Tube Mic Kit DIY
Post by: vinylwall on January 21, 2018, 01:45:51 PM
Hurry up Dany!!!!  I want one of these REALLY BADLY!  haha ;D
Title: Re: Feeler : D47 Tube Mic Kit DIY
Post by: MagnetoSound on January 21, 2018, 03:05:42 PM
Good interest here, too. The price is going to be crucial for a lot of us, I think ...
Title: Re: Feeler : D47 Tube Mic Kit DIY
Post by: Pip on January 21, 2018, 05:57:24 PM
Depending on price I'm in for at least two. Actually interested in the bodies more then the guts!
Title: Re: Feeler : D47 Tube Mic Kit DIY
Post by: poctop on January 22, 2018, 11:56:36 AM
Depending on price I'm in for at least two. Actually interested in the bodies more then the guts!













Title: Re: Feeler : D47 Tube Mic Kit DIY
Post by: poctop on January 22, 2018, 12:00:36 PM
I'm in - pending price of course. I'm not in a rush so I'll pass on the prototype as I'm sure there are others who would love to get their hands on it.

Dany, can you comment on the differences between the parallel 408A and EF80X amps? I was planning an EF47 for my next mic but I'd like to know yours and others' opinions on the two amps. Have you tried the two amps with the same capsule and transformer?

I assume from the photos that the kits will allow these options as well as steel tubes.

Absolutely
D.
Options Above

Title: Re: Feeler : D47 Tube Mic Kit DIY
Post by: stelin on January 22, 2018, 05:51:07 PM
I'm interested in at least two, depending on the price.

I’ve built three MK-U47 kits (sold two, kept one). Those builds were not cheap. I think the total cost was almost 1800 Euros per microphone, including the PSU, cable and everything else. Also the VAT and the shipping costs…

Your kits are even more close to an original U47 than the MK-U47 kits. They look beautiful! But how much will they cost? That’s the crucial question.

At some point, if the cost of a build gets close to let’s say a FLEA U47, I’m not sure if I will be interested.  I hope that’s not the case.
Any way: I would love to build a couple of your U47 kits!

I also would be interested in any opinions about the differences between the parallel 408A and EF80X amps.
I've only used the parallell 408A in my builds so far. They sound very good, but are a bit noisy, I think.

Title: Re: Feeler : D47 Tube Mic Kit DIY
Post by: Phrazemaster on January 22, 2018, 07:37:26 PM
Those look like FleA bodies. I bet Dan has an agreement with them.

They sold me one of their bodies a few years ago but it wasn't cheap!

Looks beautiful.

Mike
Title: Re: Feeler : D47 Tube Mic Kit DIY
Post by: poctop on January 22, 2018, 08:22:55 PM
Those look like FleA bodies. I bet Dan has an agreement with them.

They sold me one of their bodies a few years ago but it wasn't cheap!

Looks beautiful.

Mike

Thanks Mike ,
There is no agreement with Flea,  i had redrawn every single part from scratch which took 2 year to do and to assess,
but i can take this as a compliment  :)
best,
Dan,


Title: Re: Feeler : D47 Tube Mic Kit DIY
Post by: poctop on January 22, 2018, 08:24:12 PM
I have added Price on first post.
best,
Dan,

There will be arround 10 more kits available in a short moment ,
if any interest let me know in this thread and i will adress it as i go ,
Best,
Dan,


Title: Re: Feeler : D47 Tube Mic Kit DIY
Post by: Phrazemaster on January 22, 2018, 09:57:24 PM
Thanks Mike ,
There is no agreement with Flea,  i had redrawn every single part from scratch which took 2 year to do and to assess,
but i can take this as a compliment  :)
best,
Dan,
Dan, that’s absolutely stunning work!! And the plating looks PERFECT!!!!

Great job!!!

Mike
Title: Re: Feeler : D47 Tube Mic Kit DIY
Post by: poctop on January 24, 2018, 11:39:54 AM
Dan, that’s absolutely stunning work!! And the plating looks PERFECT!!!!

Great job!!!

Mike

Thanks Mike ,
There is no agreement with Flea,  i had redrawn every single part from scratch which took 2 year to do and to assess,
but i can take this as a compliment  :)
best,
Dan,

A small part of it  :)

(https://www.dropbox.com/s/41g3fifvozja7z5/IMG_2958.JPG?raw=1)



(https://www.dropbox.com/s/6m7xxfwe04woh4z/IMG_2959.JPG?raw=1)
Title: Re: Feeler : D47 Tube Mic Kit DIY
Post by: Wordsushi on January 24, 2018, 12:25:25 PM
Dude, I can only imagine the hours and work that went into this. It's extremely impressive. Extremely.

Price?
Title: Re: Feeler : D47 Tube Mic Kit DIY
Post by: poctop on January 24, 2018, 12:33:34 PM
Dude, I can only imagine the hours and work that went into this. It's extremely impressive. Extremely.

Price?

Thanks ,
See First Post,
Best,
Dan,
Title: Re: Feeler : D47 Tube Mic Kit DIY
Post by: TLRT on January 26, 2018, 12:12:29 PM
Ready to start:D
Title: Re: Feeler : D47 Tube Mic Kit DIY
Post by: TillM on January 26, 2018, 01:55:13 PM
this is crazy !
have fun with it ?
do you use EF12 or EF14 tubes ? Or this the original VF14?
I want to use the EF12 tube.
Title: Re: Feeler : D47 Tube Mic Kit DIY
Post by: TLRT on January 26, 2018, 02:57:43 PM
this is crazy !
have fun with it ?
do you use EF12 or EF14 tubes ? Or this the original VF14?
I want to use the EF12 tube.

I have all tubes(yes vf14's also)+neumann k47's,etc... I'm also curious about ef12k!
Title: Re: Feeler : D47 Tube Mic Kit DIY
Post by: Delta Sigma on January 26, 2018, 04:06:08 PM
I'm stuck deciding which amp I should build with. I'm leaning toward the EF80X. I realize it's extremely subjective and there may be strengths and weaknesses for each one but...

Dany, can you comment on the differences between  amp / tube choices?

I'm okay with completely subjective terms like "pillowy", "hi-fi", "tubey" but of course am interested in noise (or the lack of).



By the way, I believe Ben started building his Arabellas with EF12s but switched to the Russian equivalents 6ZH8, 6SJ7 and 5693 (not sure if they're all Russian).

https://beesneezmicrophones.com.au/store/6zh8-/-6sj7-/-5693-steel-tube.html

My Arabella had the 6ZH8; it sounded great and was quiet (low noise).
Title: Re: Feeler : D47 Tube Mic Kit DIY
Post by: midwayfair on January 26, 2018, 04:18:25 PM
Beautiful kit, but the switch for the pattern is especially neat!
Title: Re: Feeler : D47 Tube Mic Kit DIY
Post by: Avgatzeblouz on January 26, 2018, 04:23:08 PM
Is it a limited run, or can we expect to order it in a few months ?
Title: Re: Feeler : D47 Tube Mic Kit DIY
Post by: wmarden on January 29, 2018, 04:22:47 AM
Oh man! I'm definitely interested in this project! Great looking body!
Title: Re: Feeler : D47 Tube Mic Kit DIY
Post by: TLRT on January 29, 2018, 03:09:44 PM
Status update, I ordered all parts for vf14 style PSU,I restored my old vintage k47 mounts also:
Title: Re: Feeler : D47 Tube Mic Kit DIY
Post by: Floti on January 30, 2018, 04:42:27 AM
How is this going? I´d like to get two kits if still possible!
Title: Re: Feeler : D47 Tube Mic Kit DIY
Post by: poctop on January 30, 2018, 08:32:15 AM
How is this going? I´d like to get two kits if still possible!

PMed,
Title: Re: Feeler : D47 Tube Mic Kit DIY
Post by: poctop on January 30, 2018, 08:33:23 AM
 :)
Title: Re: Feeler : D47 Tube Mic Kit DIY
Post by: TLRT on February 09, 2018, 05:42:13 AM
So Dany's heads are compatible even with the original u48(of course in card position only) yesterday we made some tests, it was fun.
Title: Re: Feeler : D47 Tube Mic Kit DIY
Post by: Recording Engineer on February 09, 2018, 01:23:53 PM
compatible even with the original u48(of course in card position only)

Why is that?
Title: Re: Feeler : D47 Tube Mic Kit DIY
Post by: TLRT on February 09, 2018, 01:45:24 PM
Why is that?

Connectors are different,but the pins are compatible. U48 has an extra 1000pf cap for the back membrane.
Title: Re: Feeler : D47 Tube Mic Kit DIY
Post by: poctop on February 12, 2018, 02:33:34 PM
Thanks All,
those have all been sold for now ,
i am currently making the new batch ,
Best,
DAn,

PS: thanks Vinylwall for those picture he sent from is completed build ,

(https://www.dropbox.com/s/w2s3gl0bxv3n3ox/D47U14.jpg?raw=1)

(https://www.dropbox.com/s/9bbynn8s9155biq/IMG_6898L.jpg?raw=1)

(https://www.dropbox.com/s/a6nlwtmjd3in0fk/IMG_6951L.jpg?raw=1)


Title: Re: D-47 Tube Mic Kit DIY Solution
Post by: IndietownRecording on February 15, 2018, 08:42:49 PM
I'm in for one from the next batch!
Title: Re: D-47 Tube Mic Kit DIY Solution
Post by: TLRT on February 18, 2018, 11:08:21 AM
Mine is ready also with Phaedrus vf14m
Title: Re: D-47 Tube Mic Kit DIY Solution
Post by: poctop on March 19, 2018, 09:52:23 AM
Thanks all i have received your email and added to the coming batch , All is going well , i should be getting most of the parts this week and then going to visit Dr. Nickel Soon.

Stay tuned,
Best,
Dan,
Title: Re: D-47 Tube Mic Kit DIY Solution
Post by: Adadan on March 19, 2018, 10:58:54 PM
I'd love to be in for one kit on the next batch, if they aren't all spoken for.

Thanks!
Title: Re: D-47 Tube Mic Kit DIY Solution
Post by: poctop on March 20, 2018, 09:33:24 AM
I'd love to be in for one kit on the next batch, if they aren't all spoken for.

Thanks!

Pmed,
best,
Dan,
Title: Re: D-47 Tube Mic Kit DIY Solution
Post by: mesajoe on April 03, 2018, 10:38:16 AM
Dan,

I'd be up for two in the next batch, if there is space please.

Thx
Mark
Title: Re: D-47 Tube Mic Kit DIY Solution
Post by: poctop on April 03, 2018, 10:40:49 AM
Dan,

I'd be up for two in the next batch, if there is space please.

Thx
Mark

Pmed,
best,
Dan,
Title: Re: D-47 Tube Mic Kit DIY Solution
Post by: vinylwall on April 10, 2018, 04:02:33 PM
FLEA 48 with Dany's D47 headbasket assembly - perfect fit and works great:

(http://www.vinylwall.com/D-47VintageBouchard/FLEA48-D47head.JPG)
Title: Re: D-47 Tube Mic Kit DIY Solution
Post by: vinylwall on April 10, 2018, 04:04:03 PM
Dany's D47 body assembly with a genuine Neumann U47 headbasket (serial #5084) - perfect fit and sounds great:

(http://www.vinylwall.com/D-47VintageBouchard/D47-NEUMANNhead.JPG)
Title: Re: D-47 Tube Mic Kit DIY Solution
Post by: vinylwall on April 10, 2018, 04:07:22 PM
Fabulous job on this kit Dany!!!!  It was a joy to build and it sounds AMAZING.  I built the VF14 style kit.  I have a new Telefunken VF14K as well as a vintage VF14 (non-M).  With the Theirsch Red-line (mylar) capsule and AMI's BV08C Classic transformer.

Here is a folder full of pics of my build:

http://www.vinylwall.com/D-47VintageBouchard/ (http://www.vinylwall.com/D-47VintageBouchard/)

(http://www.vinylwall.com/D-47VintageBouchard/IMG_6942.JPG)
Title: Re: D-47 Tube Mic Kit DIY Solution
Post by: lkipod on April 12, 2018, 12:51:25 PM
Mine is ready also with Phaedrus vf14m

How does it sound?
Any annoying noise problems?
Cheers
Moshe
Title: Re: D-47 Tube Mic Kit DIY Solution
Post by: TLRT on April 12, 2018, 01:05:15 PM
How does it sound?
Any annoying noise problems?
Cheers
Moshe

Hi, No noise problems, it sounds great! Use proper star-grounding in the PSU and join 0V and screen to the mic body.
Title: Re: D-47 Tube Mic Kit DIY Solution
Post by: mattmartin831 on May 17, 2018, 01:36:55 PM
I'd love to order one of these when they are available again
Title: Re: D-47 Tube Mic Kit DIY Solution
Post by: poctop on May 17, 2018, 02:15:41 PM
I'd love to order one of these when they are available again

pm'ed
best,
Dan,
Title: Re: D-47 Tube Mic Kit DIY Solution
Post by: tommypiper on May 19, 2018, 08:39:45 PM
Looks very interesting.   8) 

For the VF-12 / 14s, what transformers are currently available?  Is AMI still making theirs? 
Title: Re: D-47 Tube Mic Kit DIY Solution
Post by: Lordward on May 20, 2018, 04:59:09 AM
I'd be up for one!!!!!
Title: Re: D-47 Tube Mic Kit DIY Solution
Post by: poctop on May 20, 2018, 07:28:45 PM
pmed,
thanks,
dan,
Title: Re: D-47 Tube Mic Kit DIY Solution
Post by: poctop on May 20, 2018, 07:30:50 PM
Looks very interesting.   8) 

For the VF-12 / 14s, what transformers are currently available?  Is AMI still making theirs?

yes they are but there is other option too the AMI BV8 classic if very popular  , i have three different PCB that supports alot of different transfomer as well,  haufffe,cinemag , and others ....
 best,
Dan,
Title: Re: D-47 Tube Mic Kit DIY Solution
Post by: poctop on August 29, 2018, 02:42:28 PM
hi Folks , for those who are building the mic , i have found that putting a small dab of epoxy on the contact tongue inside the headbakset eliminates a resonnance cause by it , as it might be confused with an Mbira instrument from africa,
also using a little dab of epoxy on the screw thats hold the tongue will prevent any shifting during years of operation ,

(https://www.dropbox.com/s/abyn8ucirza5fsj/IMG_4906.jpg?raw=1)

I am almost ready to release the third batch , i have prepared a little temporary webpage to checkout the offered options,
http://www.vintagemicrophonepcbkit.com/OrderD47.html

Best,
Dan,



Title: Re: D-47 Tube Mic Kit DIY Solution
Post by: JessJackson on September 02, 2018, 01:55:34 PM
havnt visited this forum in a minute but WELL DONE bro. Looking sweet!
Title: Re: D-47 Tube Mic Kit DIY Solution
Post by: poctop on September 05, 2018, 01:57:18 PM
havnt visited this forum in a minute but WELL DONE bro. Looking sweet!

yes i have done it the last minute you were off  this site ,
 ;)
BEst,
dAn,
Title: Re: D-47 Tube Mic Kit DIY Solution
Post by: poctop on November 15, 2018, 02:13:28 PM
Mechanical Mic  kits are back in stock, :)

Matt Head Style is Now Available Limited Qty initial run
(https://www.dropbox.com/s/v93gxr8t196q5wh/IMG_5469.JPG?raw=1)

D47 Mechanical Kit
(https://www.dropbox.com/s/47tm59755l5fajs/IMG_5546.JPG?raw=1)

For the First Time U48 is also available in limited Qty initial run
(https://www.dropbox.com/s/29pv1g2xll64d7f/IMG_5545.JPG?raw=1)

U48 Mechanical Kit
(https://www.dropbox.com/s/ar1b3qgmf8xtrwe/IMG_5468.JPG?raw=1)

(https://www.dropbox.com/s/29ilz3udh4cnmlu/IMG_5415.JPG?raw=1)

(https://www.dropbox.com/s/x3f4dbi1uu85651/IMG_5440.JPG?raw=1)

(https://www.dropbox.com/s/moybdwzd68u9hej/IMG_5443.JPG?raw=1)

Best
Dan :)
Title: Re: D-47 Tube Mic Kit DIY Solution
Post by: vinylwall on November 15, 2018, 02:22:56 PM
Dany, you make the most beautiful kits out there!  Second to none.
Title: Re: D-47 Tube Mic Kit DIY Solution
Post by: rockinrob86 on February 08, 2019, 10:56:07 AM
If I built an EF47 kit, with the power supply, would I be able to use that power supply with the EF version of this?  I am wondering about the pattern switching, since this has it on the microphone
Title: Re: D-47 Tube Mic Kit DIY Solution
Post by: poctop on February 08, 2019, 09:10:37 PM
If I built an EF47 kit, with the power supply, would I be able to use that power supply with the EF version of this?  I am wondering about the pattern switching, since this has it on the microphone

yes it will work just fine with this psu , all you have to do is to remove power to the relay and bypass the pattern switch or simply cut the WIRE  ;D,   you will need to adjust the string resistor since you draw about 6ma less current on the B+ rail.

Best,
Dan,
Title: Re: D-47 Tube Mic Kit DIY Solution
Post by: TillM on February 12, 2019, 09:32:28 AM
Now I’m done !
This body kit is such amazing !
Thank you Dan.
Use the 408a tubes and get luck with them cause mine WE408a a quite noiseless.
Transformer is from Srdjan (Moby) and like his BV11 I use in my M49 build I also like his transformer in my U47 clone.
Title: Re: D-47 Tube Mic Kit DIY Solution
Post by: TillM on February 12, 2019, 09:35:28 AM
I use the Matt nickel head.
The capsule is a Flea K47.
Always used Thiersch M7 and want to try something new.
Title: Re: D-47 Tube Mic Kit DIY Solution
Post by: TillM on February 12, 2019, 09:36:34 AM
And last but not least the K47 capsule in the holder.
Thiersch was kind enough to drill some holes in it.
Mic sound amazing !
Title: Re: D-47 Tube Mic Kit DIY Solution
Post by: Monoklang on February 25, 2019, 05:24:58 AM
Hi, kind of an old newbie here. I built a lot of stuff but that was a few years ago...
I would love to build a couple of these! But I can't manage to find a build thread. I've built the MK47 before but as I said that was a long time ago and would like to get back up on the saddle,..

When I press the BOM button on http://www.vintagemicrophonepcbkit.com/OrderD47.html
I get to the D-U47FET build thread. So the BOM is the same for these microphones?

I have a couple of Raintons Ultimate Mic-PSU-chassis that I would like to use, but where do I find a PCB that goes with this build that fits the chassi? Would this Zayance's MK-U47 be a good choice?

Also I would like some tips for what to choose regards Capsule Holder, Tube socket, layout etc... I can go with Dans D7 as capsules, so would that be the regular M7 holder?

I rather buy transformers and the other components from Europe since I live in Sweden. What would you recommend?

Kind regards
John
Title: Re: D-47 Tube Mic Kit DIY Solution
Post by: vinylwall on February 25, 2019, 07:12:11 AM
Hi Monoklang.  This D-47 kit includes BOM & Build documents as well as:
-Wooden Box
-M23 German Binder Mic Side
-Capsule Holder
- Tube Socket of your Choice ( Dual , Noval, Steel Can) and Mounting Hardware
- PCB or your choice  for different Transformer option and a Total of 3 different Circuit ( ef8XX-EF14, Dual 6028, EF12)
-Custom Heatsink on Request for Dropping resistor for original circuit or Dual 6028 circuit
- Plain Metal Deck supplied on request.
- Layout Diagrams of your choice.
Title: Re: D-47 Tube Mic Kit DIY Solution
Post by: poctop on February 25, 2019, 03:51:05 PM
Hi, kind of an old newbie here. I built a lot of stuff but that was a few years ago...
I would love to build a couple of these! But I can't manage to find a build thread. I've built the MK47 before but as I said that was a long time ago and would like to get back up on the saddle,..

When I press the BOM button on http://www.vintagemicrophonepcbkit.com/OrderD47.html
I get to the D-U47FET build thread. So the BOM is the same for these microphones?
this is a mistake on the webpage , i have corrected it and removed the link  all BOM and layout are coming with the kit

I have a couple of Raintons Ultimate Mic-PSU-chassis that I would like to use, but where do I find a PCB that goes with this build that fits the chassi? Would this Zayance's MK-U47 be a good choice?
yes if you choose the VF14 or dual 6028 solution, else i would be able to supply an dual rail PCB for other configuration but it will need some adaptation as per say recalculation and omission of pattern component but you have to figure this part out as i have no documentation on the psu yet

Also I would like some tips for what to choose regards Capsule Holder, Tube socket, layout etc... I can go with Dans D7 as capsules, so would that be the regular M7 holder?
yes regular M7 holder for D7, PM me your wish list and i will have a look


I rather buy transformers and the other components from Europe since I live in Sweden. What would you recommend?

Kind regards
John
Title: Re: D-47 Tube Mic Kit DIY Solution
Post by: Janalex on April 04, 2019, 02:51:29 PM
Hi all,

I'd like to share some pics of a recent U47 build we just finished up. I am so pleased with the way it turned out and the sound is jaw dropping. I did my best to build as close to original spec as possible. Dan was very helpful throughout the process. I purchased the power supply enclosure and circuit board from him in addition to the all the metal parts for the mic except for the transformer deck. I chose to go with the AMI metal transformer deck and circuit boards. As you can all see that is an original VF12M in the mic that I had in storage for some time. Additionally I used a transformer with NOS laminations from AMI, 10nf vintage styroflex C1 cap, hand selected C2 and C3 caps, Mogami cable, Binder connectors, and Neumann K49 capsule. I didn't spare any expense cause this was gonna be my #1 mic. Enjoy!
Title: Re: D-47 Tube Mic Kit DIY Solution
Post by: Janalex on April 04, 2019, 02:52:21 PM
Another pic
Title: Re: D-47 Tube Mic Kit DIY Solution
Post by: Janalex on April 04, 2019, 02:54:48 PM
And one more
Title: Re: D-47 Tube Mic Kit DIY Solution
Post by: rockinrob86 on April 05, 2019, 10:00:21 AM
Poctop, how is the U48/figure 8 mic's cardioid vs the U47's cardioid?  Identical in your circuit?  I've heard the U48 cardioid doesn't sound as good, but you know how the internet is!
Title: Re: D-47 Tube Mic Kit DIY Solution
Post by: TillM on June 21, 2019, 07:16:07 PM
Hi Guys,
i changed my dual tubes to a Telefunken UF14.
Thanks so much Dan for your help with that!
There are just some little modifications with the Zayance PSU pcb and on the mic.
The only problem is the heat.
The bottom of the mic gets really hot after some minutes.
You can’t nearly touch it.
But for all, who wants to go with a UF14, it’s nearly the same circuit like on the VF14.
Will post pictures later, it’s too late.  ;)


Edit:
The heat seams a problem.
Has anyone a original U47 or something with a EF14 or other tubes.
How is the heat ?
Title: Re: D-47 Tube Mic Kit DIY Solution
Post by: poctop on June 24, 2019, 10:34:09 PM
Lets Make sure the same number of Watt is dissipated here  ;)
the key of the sounding VF14 is dissipation and underheated tube.
Killing the Watts that is !
Best,
Dan,
Title: Re: D-47 Tube Mic Kit DIY Solution
Post by: TillM on June 25, 2019, 01:05:09 PM
The main problem is the heat produced from the filament resistor with the UF14 tube.
I would say it’s something between 7 and 11 watt.
I’ll put the filament resistor in the PSU and take an extra heat sink on it.
Then I will connect the resistor through the PSU cable to the mic.
I don’t have done it yet, but I’m sure it will work. First I need a 7-pin mic cable, the one I used at this times, has just 5-pin.

Title: Re: D-47 Tube Mic Kit DIY Solution
Post by: Mrosso on July 04, 2019, 10:28:24 AM
In the kit I received there was a solder tab and screw in a bag labeled “bell” star ground. Does this need to be attached to the bottom mic where the binder connector is? Is this in addition to the solder tab on the PCB? Thanks
Title: Re: D-47 Tube Mic Kit DIY Solution
Post by: TillM on July 05, 2019, 03:47:18 AM
it doesn't matter.
But in the build guide, Dan always send, there is the bottom bell recommended.
Title: Re: D-47 Tube Mic Kit DIY Solution
Post by: Mrosso on August 12, 2019, 10:00:53 PM
Thanks for all the help, everyone. Big thanks for Dan for an amazing project. I'm almost ready to fire the mic up, but I'm having some anxiety about how to wire the mic cable. I'm using a Gotham 7 wire tube mic cable with a Binder 9 pin connector at the mic end and Binder 7 pin at the PSU end. Here is the wiring I was planning to use:
Title: Re: D-47 Tube Mic Kit DIY Solution
Post by: lalalaetc on February 25, 2020, 07:50:44 PM
yes it will work just fine with this psu , all you have to do is to remove power to the relay and bypass the pattern switch or simply cut the WIRE  ;D,   you will need to adjust the string resistor since you draw about 6ma less current on the B+ rail.

Best,
Dan,

It may be a bit late to resurrect this thread, but I have to chime in. I finished my mic build today, and I am beyond pleased with both the sound quality, and quality of hardware that I got from Dany. Truly first class!

I do have one question. My build sounds really good as-is, but I see mention of swapping a resistor to accommodate for the lack of a switching relay. That all makes sense to me, but to those of you whom have successfully completed this build, did you raise a resistor value in the PSU or in the mic body?


Best,
Wyatt
Title: Re: D-47 Tube Mic Kit DIY Solution
Post by: Delta Sigma on February 26, 2020, 09:31:05 AM
It may be a bit late to resurrect this thread, but I have to chime in. I finished my mic build today, and I am beyond pleased with both the sound quality, and quality of hardware that I got from Dany. Truly first class!

I do have one question. My build sounds really good as-is, but I see mention of swapping a resistor to accommodate for the lack of a switching relay. That all makes sense to me, but to those of you whom have successfully completed this build, did you raise a resistor value in the PSU or in the mic body?


Best,
Wyatt

Are your voltages where you want them? I assume you mean the extra current draw from the relay running off B+. If your voltages are higher than you want them, you may need to change the power supply dropping resistors. All depends on component variances, wall voltage, etc.
Title: Re: D-47 Tube Mic Kit DIY Solution
Post by: TillM on February 26, 2020, 11:54:21 AM
I just connect crd and com in the psu, to get true cardioid.
Then the voltage was as I want it.
Title: Re: D-47 Tube Mic Kit DIY Solution
Post by: FarisElek on February 27, 2020, 10:14:37 AM
When will these be back in stock?


Ryan
Title: Re: D-47 Tube Mic Kit DIY Solution
Post by: lalalaetc on February 27, 2020, 02:56:19 PM
Are your voltages where you want them? I assume you mean the extra current draw from the relay running off B+. If your voltages are higher than you want them, you may need to change the power supply dropping resistors. All depends on component variances, wall voltage, etc.

Sorry for the delay. I was, in fact, referring to the extra draw from the relay. My voltages all seem happy, I just thought I'd inquire in the event there was something I was overlooking.

Thanks again!
Title: Re: D-47 Tube Mic Kit DIY Solution
Post by: myers1st on February 29, 2020, 10:47:13 AM
I finished my D47 and couldn't be happier with the sound (and look)!  The quality of this mechanical kit is so amazing.  I used a FAB transformer, Telefunken EF800, and Dany's D7 capsule.  I had an old Telefunken badge to slap on it just for fun.  Martin's ultimate tube mic PSU case from Analog Vibes is really awesome for this project too.

I also had the issue with my B+ being too high because of the lack of relay not drawing current.  Dany's PSU calculator spreadsheet is really handy for figuring out the drop resistor values, I ended up with 110k at R1 and R3 to get to 105V.

Thanks again Dany for putting all of these amazing mics within our reach (and for your help as we build them)!  I've done a D251, a D67 and now the D47 and they all sound stellar  ;D
Title: Re: D-47 Tube Mic Kit DIY Solution
Post by: prophei on June 27, 2020, 03:47:44 PM
Hi Everyone!

I bought this kit from Dan a long time ago, with a power board and enclosure kit that didn't come with any support. It looked nice, and with just enough DIY synth experience to feel overconfident... I went for it.

I looked over all the materials, bought the parts in the BOM for this power supply, and using  whatever information I could find, started to assemble it all. Once I had it together, I was getting readings that confused me, and the few materials I did get for the power supply weren't really a build doc, so I was nervous to mess around too much given this was a much higher power device than I was used to.

I put it aside and left it... until now. I really am excited about the Mic, but there is no point in building that until I tackle this power thing... so I was hoping I could ask a few questions that might steer me in the right direction.

My main problem is that while I am getting transformer readings on the input to the circuit that seem roughly in the ball park of what is expected, I am not seeing voltages that make sense to me on the output. From looking at the schematic, it expects 220v and 20v on the B+/H+ inputs. I have roughly that, + a little more than 10v on both.

When I then look at the B+/H+ outputs, instead of the 105v/5.05v that the schematic seems to tell me to expect, I get 233v - 252v @pad5 depending on the trimmer setting, and 27 - 29v @pad 4 depending on the pot setting.

This reads to me that other than the pot/trimmers having some minor impact, the overall ranges are completely off. I have no materials that resemble a build doc, so I am not sure If I missed something incredibly obvious. I have attached link to the 2 schematics I have used to get the numbers, and a few images of my board... in case anything stands out. (These are in a single PDF)

I am hoping that I am just doing something obviously dumb and easily resolved, as this is my first time with any sort of big power supply. Quite different than the 12v+/- synth modules I hav e been more accustomed to!

https://www.dropbox.com/s/f8l6rcuyw35zugo/Ef800MicPowerschematic.pdf?dl=0 (https://www.dropbox.com/s/f8l6rcuyw35zugo/Ef800MicPowerschematic.pdf?dl=0)

Any help is VERY much appreciated! Thanks!

-Michael
Title: Re: D-47 Tube Mic Kit DIY Solution
Post by: Phrazemaster on June 27, 2020, 05:04:12 PM
You’re testing the voltages without the mic hooked up. Your PSU will read high until you attach a load to it.

You could calculate the load the mic would give and use an appropriate resistor if you want to test the PSU further. Maybe someone will chime in and tell you how to calculate it.
Title: Re: D-47 Tube Mic Kit DIY Solution
Post by: prophei on June 28, 2020, 02:02:43 PM
This makes a lot of sense. I suppose that since I am not familiar with the behavior of these power supplies, I have been hesitant to build up a mic and connect to power that might cause damage of some sort if incorrect.

Your comment on load is triggering a memory from stuff I had researched a while back. I assume this must require more than a few resistors? I have had a few connected to the outputs that might have been derived from readings before. I must have that wrong, as the numbers still don't make sense.

Any help is much appreciated, even if just a link to where I am find the information. There is so much here on the boards that I have gotten a bit lost. In the meantime, I will look around for more information.

Thanks!
Title: Re: D-47 Tube Mic Kit DIY Solution
Post by: Phrazemaster on June 28, 2020, 03:53:02 PM
You will need a resistor to test the B+ and one for the H+. Basically one for each voltage the PSU is supplying.

I don’t know the circuit here to tell you how to calculate the resistors, but maybe someone here can chime in...
Title: Re: D-47 Tube Mic Kit DIY Solution
Post by: prophei on June 28, 2020, 08:46:59 PM
Ok, that explains a lot. I already was using those, but going from memory, they weren't changing things for me materially. I am going to retest right now just in case I am wrong on that...  and then scour the boards for where those values are listed. Thanks again!
Title: Re: D-47 Tube Mic Kit DIY Solution
Post by: prophei on June 28, 2020, 09:58:56 PM
As an update to my post above, and accounting for needing to get the readings under load, I am getting the following:

184 - 210v at the output for B+
26 - 28v at the output for H+

The ranges are determined by their adjustment trim/pot.

This is clearly still way too high. Looking at Dany's PSU Calc, I am trying to make sense of it, but some things aren't labeled. Does anyone have a description for it? I am guessing that I can fix my issues with changing my R1/R2 resistors until I get the right output voltage?

Any help appreciated! Thanks!  :)
Title: Re: D-47 Tube Mic Kit DIY Solution
Post by: Phrazemaster on June 28, 2020, 11:02:53 PM
I think it would help if you posted what values you are using for your resistors for each.
Title: Re: D-47 Tube Mic Kit DIY Solution
Post by: prophei on June 28, 2020, 11:11:59 PM
I think I have figured this out. Please let me know if my labels are correct here (from the PSU Calc spreadsheet). Screenshot attached...

So basically, R1/2 in this spread sheet show as 12k, so if I tweak these until I get to 105v (B+), I'm good to go?
Title: Re: D-47 Tube Mic Kit DIY Solution
Post by: prophei on June 29, 2020, 01:18:19 AM
I think it would help if you posted what values you are using for your resistors for each.

As far as my numbers,

 my Voltage Source is: 239V, and for testing, my trimmer is set to give me the lowest voltage possible.



I started my tests with what my board has printed on it:


R1 - 20k

R2 - 6.8R



That gave me the numbers I explained above (184V).


When I use the Calc, that looks like it is supposed to give me 151V, which it did not.



Then, as an experiment, I made R1 = 26.8k, which the calc says should give me about 99v if I leave R2 alone, but it gives me 178V. Pretty much changed by almost the same resistor value.



If I look at the schematic, it wants different values than this PCB has on it. It wants:


R1 - 12k

R2 - 15R



Using the Calc, that would give me about 212V, given that my Voltage source is 239V… so nothing really seems to match up between the Calc and my numbers.
 This is what I am finding confusing.

Do I just increase R1 until my voltage drops close enough to 105V?
Title: Re: D-47 Tube Mic Kit DIY Solution
Post by: Phrazemaster on June 29, 2020, 01:21:36 AM
You have to calculate the load the microphone would give the PSU. Not valued printed on the PCB. I don’t think you’re using the right value resistors.

I’m sorry I can’t help you calculate these but someone here can.
Title: Re: D-47 Tube Mic Kit DIY Solution
Post by: prophei on June 29, 2020, 01:42:12 AM
You have to calculate the load the microphone would give the PSU. Not valued printed on the PCB. I don’t think you’re using the right value resistors.

I’m sorry I can’t help you calculate these but someone here can.

As far as I had read someplace, I am accounting for the load of the microphone by a resistor at the output of the board that would go to the mic. The resistor I am using at the B+ output is a 270K resistor.

Unless I am completely misunderstanding something, all of this is supposed to add up to about 105V after that resistor, which simulates the voltage getting into the microphone circuitry.

Hunting down where I'm wrong has been tricky.  Thanks for the pointers !  :)
Title: Re: D-47 Tube Mic Kit DIY Solution
Post by: Phrazemaster on June 29, 2020, 02:14:30 AM
Wish I could be more helpful. Don’t give up. There’s so many geniuses on this board and I’m sure someone will chime in.  :D
Title: Re: D-47 Tube Mic Kit DIY Solution
Post by: TillM on June 29, 2020, 03:12:53 AM
Which tube do you use ?
According to that, you got a psu pcb, right ?
Title: Re: D-47 Tube Mic Kit DIY Solution
Post by: prophei on June 29, 2020, 12:25:49 PM
Which tube do you use ?
According to that, you got a psu pcb, right ?

Hello!

That is correct, I have the psu pcb from Dany. I am building this kit around an EF800 tube, and the materials I got for both the mic and the powersupply are described as for that tube.

-michael
Title: Re: D-47 Tube Mic Kit DIY Solution
Post by: TillM on June 29, 2020, 01:33:53 PM
Like Phrasemaster said, your voltage are the specs, when the mic is unloaded.
Did you read the same, when the mic is plugged ?
Title: Re: D-47 Tube Mic Kit DIY Solution
Post by: prophei on June 29, 2020, 09:17:08 PM
Like Phrasemaster said, your voltage are the specs, when the mic is unloaded.
Did you read the same, when the mic is plugged ?

I am not sure I understand your question. My voltages are way out of spec from what I can tell. I am using some resistors on my outputs to simulate load from the mic. Are you saying that my numbers look correct if there is no mic present? Which number from the above?

I have not built the mic, as trying to get this power-supply working seemed the more complex item to tackle as it came with no instructions. Also, I can't test the mic without power.

All my numbers and method are in the conversation above.
Title: Re: D-47 Tube Mic Kit DIY Solution
Post by: prophei on July 02, 2020, 09:51:54 PM
Anyone able to help?  :)

Even some verification regarding how to label / use the Dany's PSU Calc would be great!

Thank you.
Title: Re: D-47 Tube Mic Kit DIY Solution
Post by: Delta Sigma on July 02, 2020, 10:32:13 PM
As far as I had read someplace, I am accounting for the load of the microphone by a resistor at the output of the board that would go to the mic. The resistor I am using at the B+ output is a 270K resistor.

Quick calc from Dany's values on the mic schematic I got 213,333k ohms for a B+ dummy load resistor. A incorrect dummy load value may throw you for a loop. Maybe your 270k isn't enough load. If I had time, I'd measure mine with your  270k dummy load and see what mine does but unfortunately I'm busy. 17 ohms for H+ (2 watts!). Don't worry to get exact numbers here, just ballpark. Every tube will be different. I set up my PS with a load resistor to get close-ish but definitely not exact. If I can't dial H+ or B+ in precisely, I then change PS components to get where I need to be.
Title: Re: D-47 Tube Mic Kit DIY Solution
Post by: prophei on July 02, 2020, 11:20:55 PM
Quick calc from Dany's values on the mic schematic I got 213,333k ohms for a B+ dummy load resistor. A incorrect dummy load value may throw you for a loop. Maybe your 270k isn't enough load. If I had time, I'd measure mine with your  270k dummy load and see what mine does but unfortunately I'm busy. 17 ohms for H+ (2 watts!). Don't worry to get exact numbers here, just ballpark. Every tube will be different. I set up my PS with a load resistor to get close-ish but definitely not exact. If I can't dial H+ or B+ in precisely, I then change PS components to get where I need to be.

Thanks for the response! :)

Quick question, that calc is barely labeled, so I am not 100% certain I am using it right.
If you look at my pic from a few posts back where I labeled it for myself... am I correct?

Thank you so much.
Title: Re: D-47 Tube Mic Kit DIY Solution
Post by: TillM on July 03, 2020, 02:13:13 AM
When i build mine U47 with EF800 tube I used this dummy resistors loaded.
Heater: 22-47 ohm (above 2watt)
B+: 150k (above 0,25watt)
And don't forget to set a jumper between CRD and COM on the PSU pcb.

But like I said before, I had the same readings like you with my PSU.
When the mic is plugged, you will see, it will work. (requirement you don't make a mistake by soldering the mic parts)
Title: Re: D-47 Tube Mic Kit DIY Solution
Post by: prophei on July 04, 2020, 02:26:49 PM
When i build mine U47 with EF800 tube I used this dummy resistors loaded.
Heater: 22-47 ohm (above 2watt)
B+: 150k (above 0,25watt)
And don't forget to set a jumper between CRD and COM on the PSU pcb.

But like I said before, I had the same readings like you with my PSU.
When the mic is plugged, you will see, it will work. (requirement you don't make a mistake by soldering the mic parts)


Thanks... I will try your values to see if the loaded measurements make sense. So far nothing has.
Best,
Michael
Title: Re: D-47 Tube Mic Kit DIY Solution
Post by: TillM on July 04, 2020, 03:01:36 PM
If you have the PSU for the ef47 from Dan it’s important to jumper CRD and COM.
Otherwise you get false voltages.
Title: Re: D-47 Tube Mic Kit DIY Solution
Post by: prophei on July 04, 2020, 04:00:21 PM
If you have the PSU for the ef47 from Dan it’s important to jumper CRD and COM.
Otherwise you get false voltages.

How do I know that this PSU is for the ef47?
Title: Re: D-47 Tube Mic Kit DIY Solution
Post by: prophei on July 04, 2020, 04:21:21 PM
Never mind, it is. It was on the PCB. This may be my problem (jumping CRD/COM). Jumping these two did bring my readings down a bit, though I still had to mess significantly with R1. I got down to about 140V
Title: Re: D-47 Tube Mic Kit DIY Solution
Post by: prophei on July 04, 2020, 05:01:51 PM
Quick calc from Dany's values on the mic schematic I got 213,333k ohms for a B+ dummy load resistor. A incorrect dummy load value may throw you for a loop. Maybe your 270k isn't enough load. If I had time, I'd measure mine with your  270k dummy load and see what mine does but unfortunately I'm busy. 17 ohms for H+ (2 watts!). Don't worry to get exact numbers here, just ballpark. Every tube will be different. I set up my PS with a load resistor to get close-ish but definitely not exact. If I can't dial H+ or B+ in precisely, I then change PS components to get where I need to be.

How much voltage can I hit the mic with from the PSU before causing damage? From your response, it sounds like there is a bit of a range of voltages that I could get, and that I will have to fine tune to the pcb tube anyways... so what voltage is the point where I can actually damage the mic?

My desire to not kill the mic with a faulty PSU has kept me from completing that and connecting it, which would obviously give me the real load I am dealing with. 

Are there any guidelines?  :)
Title: Re: D-47 Tube Mic Kit DIY Solution
Post by: TillM on July 05, 2020, 04:28:55 AM
When you dummy load the PSU with the resistors, then calibrate the trimmer for B+ and H to the needed specs (or nearly in the range).
When you plug your mic in, then you can don the "real" calibration.
I always calibrate dummy loaded PSU's under voltage (If it works).
So lets say, I need 120v and with a dummy loaded resistor i can turn it to 110v, i trim it to 110v.
Sometimes with the dummy loaded resistor you can't get to the "real" specs. So you need 120v and the trimmer with dummy loaded resistor shows 130v with my DMM, then I take this.
Title: Re: D-47 Tube Mic Kit DIY Solution
Post by: prophei on July 05, 2020, 10:44:15 AM
When you dummy load the PSU with the resistors, then calibrate the trimmer for B+ and H to the needed specs (or nearly in the range).
When you plug your mic in, then you can don the "real" calibration.
I always calibrate dummy loaded PSU's under voltage (If it works).
So lets say, I need 120v and with a dummy loaded resistor i can turn it to 110v, i trim it to 110v.
Sometimes with the dummy loaded resistor you can't get to the "real" specs. So you need 120v and the trimmer with dummy loaded resistor shows 130v with my DMM, then I take this.

Even with the jumper in place now, I am going to need some major adjustment to my R1 to get anywhere near what I need. Makes me wonder if that implies an issue someplace else. Maybe it doesn't matter how I get there? I have some 2v resistors coming tomorrow, so I'll be able to dig in then. I have been having to do some crude serial resistor stringing to get to the test values I need.
Title: Re: D-47 Tube Mic Kit DIY Solution
Post by: prophei on July 14, 2020, 12:38:45 PM
I know this is a bit of a repeat, but does anyone know the answer to this?

"How much voltage can I hit the mic with from the PSU before causing damage? ...
...Are there any guidelines? "
Title: Re: D-47 Tube Mic Kit DIY Solution
Post by: Delta Sigma on July 15, 2020, 12:46:15 PM
I know this is a bit of a repeat, but does anyone know the answer to this?

"How much voltage can I hit the mic with from the PSU before causing damage? ...
...Are there any guidelines? "

Look at your component ratings. Filter caps. What are they rated for?
Title: Re: D-47 Tube Mic Kit DIY Solution
Post by: jrasia on July 29, 2020, 07:57:49 AM
Kudos to Dan for making a top notch U47 clone kit.  Very lovely sounding!
I used a Neumann K49, Phædrus VF14 gold dot, and Moby BV8 in my build.
Couldn't be happier
Title: Re: D-47 Tube Mic Kit DIY Solution
Post by: Avgatzeblouz on July 29, 2020, 09:18:42 AM
Kudos to Dan for making a top notch U47 clone kit.  Very lovely sounding!
I used a Neumann K49, Phædrus VF14 gold dot, and Moby BV8 in my build.
Couldn't be happier

Wow, man ! This is THE mic ! I am waiting for my Aputis body, but I have almost the exact same components waiting for it (I have the FAB transformer). Congrats !
Title: Re: D-47 Tube Mic Kit DIY Solution
Post by: TLRT on July 29, 2020, 03:25:08 PM
I know this is a bit of a repeat, but does anyone know the answer to this?

"How much voltage can I hit the mic with from the PSU before causing damage? ...
...Are there any guidelines? "

Depends on your capsule voltage divider, (2:3 or 3:3) the capsule will die if you hit above 80-100V. So above 140-150V output from PSU will be too much
Title: Re: D-47 Tube Mic Kit DIY Solution
Post by: prophei on July 30, 2020, 10:08:26 PM
Kudos to Dan for making a top notch U47 clone kit.  Very lovely sounding!
I used a Neumann K49, Phædrus VF14 gold dot, and Moby BV8 in my build.
Couldn't be happier

How do you like that Phædrus VF14 gold dot? Have there been any comparisons made between that and something like the EF800?
Title: Re: D-47 Tube Mic Kit DIY Solution
Post by: poctop on July 30, 2020, 11:18:30 PM
Kudos to Dan for making a top notch U47 clone kit.  Very lovely sounding!
I used a Neumann K49, Phædrus VF14 gold dot, and Moby BV8 in my build.
Couldn't be happier

CAps ? :D
Title: Re: D-47 Tube Mic Kit DIY Solution
Post by: jrasia on July 31, 2020, 04:27:39 PM
CAps ? :D

MKT1813 poly caps

If anyone one has NOS Bosch caps, I'll gladly take them😄
Title: Re: D-47 Tube Mic Kit DIY Solution
Post by: jrasia on July 31, 2020, 04:33:05 PM
How do you like that Phædrus VF14 gold dot? Have there been any comparisons made between that and something like the EF800?

I actually have a ef800 build as well, but it's difficult for me to compare because the ef800 has a m7 capsule, and the Phaedrus has a Neumann k47.  I don't have a real vf14 to compare, but I have no complaints about the gold dot.

The ef800 is VERY low noise, very smooth and 'big' sounding.

The k47 build is similar, but more mid forward, perhaps more compression  or something going on.
Title: Re: D-47 Tube Mic Kit DIY Solution
Post by: Phrazemaster on August 06, 2020, 01:25:06 AM
Wow, man ! This is THE mic ! I am waiting for my Aputis body, but I have almost the exact same components waiting for it (I have the FAB transformer). Congrats !
Wow - you are going to be waiting a LONG TIME! I ordered an M49 body from Aputis 3 years ago; never got it.

Good luck tho!

Mike
Title: Re: D-47 Tube Mic Kit DIY Solution
Post by: FarisElek on August 28, 2020, 11:43:35 PM
Does anyone have an opinion on their favorite tube/transformer variation for this?
Title: Re: D-47 Tube Mic Kit DIY Solution
Post by: TillM on August 29, 2020, 02:17:43 AM
i've build it with EF800 and 408a.
The difference with the tubes was subtle to not hearable.
The Capsule made a bigger difference in my opinion and with my experience.
In all my Tubemic builds I used the Transformers from Moby.
Title: Re: D-47 Tube Mic Kit DIY Solution
Post by: FarisElek on August 29, 2020, 03:11:38 AM
i've build it with EF800 and 408a.
The difference with the tubes was subtle to not hearable.
The Capsule made a bigger difference in my opinion and with my experience.
In all my Tubemic builds I used the Transformers from Moby.

Appreciate the response! It’s easy to think worry about the tubes.
Title: Re: D-47 Tube Mic Kit DIY Solution
Post by: kmozart on December 21, 2020, 07:57:25 AM
I'll be starting very soon this beauty.
Any idea how and where to place the R3,  R5, R6, R7, R8. C2, and C3?

Is there any pre-made boards in existence?

Thanks

Kosta
Title: Re: D-47 Tube Mic Kit DIY Solution
Post by: FarisElek on December 21, 2020, 10:37:30 PM
Edit: I confused this thread with another im following.
Title: Re: D-47 Tube Mic Kit DIY Solution
Post by: Delta Sigma on December 22, 2020, 10:54:03 AM
Any idea how and where to place the R3,  R5, R6, R7, R8. C2, and C3?

Is there any pre-made boards in existence?

What tube? EF800?

R3 in the EF47 schemo can be mounted to the tube socket. Most others on your PCB the transformer is mounted or the arcrylic (no alcohol on the acrylic) boards.

C2 and C3 are a mystery to me. I wonder if Dany is including C2/C3 mounting boards as I've seen photos of Dany's kits with the boards hanging beside the transformer. If you mount C2/C3 on top of the board, there doesn't seem to be enough room for the tube.

I think I used one of the other transformer boards underneath the transformer to mount C2 and C3 in my build. Kind hokey but it worked and it's solid.

My body kit is a first run. It's possible he started including an option after my kit was put together.
Title: Re: D-47 Tube Mic Kit DIY Solution
Post by: salomonander on December 22, 2020, 05:03:06 PM
Will these be available again at some point?
Title: Re: D-47 Tube Mic Kit DIY Solution
Post by: Delta Sigma on December 23, 2020, 10:03:05 AM
Edit: I confused this thread with another im following.

I do this so much!
Title: Re: D-47 Tube Mic Kit DIY Solution
Post by: kmozart on December 24, 2020, 09:25:14 AM
What tube? EF800?

R3 in the EF47 schemo can be mounted to the tube socket. Most others on your PCB the transformer is mounted or the arcrylic (no alcohol on the acrylic) boards.

C2 and C3 are a mystery to me. I wonder if Dany is including C2/C3 mounting boards as I've seen photos of Dany's kits with the boards hanging beside the transformer. If you mount C2/C3 on top of the board, there doesn't seem to be enough room for the tube.

I think I used one of the other transformer boards underneath the transformer to mount C2 and C3 in my build. Kind hokey but it worked and it's solid.

My body kit is a first run. It's possible he started including an option after my kit was put together.

I just got the kit, couple of weeks ago, and there is no board for the c2 or c3. Do you have a picture of your build where they can be seeing? It is also unclear where they are connecting on the board at all. Trying to figure it out...
Title: Re: D-47 Tube Mic Kit DIY Solution
Post by: kmozart on December 24, 2020, 10:08:00 AM
Please, I need confirmation if I did it right;

connecting Haufe BV 08 to the board:

- brown wires tied together (should I solder them on the ground pin of the transformer, or some other ground point?)
- red to p+
- black to p-
- blue to s+
- white to s-

Also, is that the plan of the placement of the c2 and c3?

Happy Holidays everyone!

Title: Re: D-47 Tube Mic Kit DIY Solution
Post by: kmozart on December 24, 2020, 10:28:17 AM
My other dilemma is, should I use left side or right side of the parts on the picture by the acrylic. Right side umbers are 179 mohms and 174 mohms. And 10000 f capacitor. Left side  is 1gohms and .01 uf cap. I built a U47FET before with ef800 and I’m pretty sure I used right side parts. It sounds amazing.

Title: Re: D-47 Tube Mic Kit DIY Solution
Post by: Delta Sigma on December 24, 2020, 11:14:41 AM
I'm still not sure what build (tube option) you're building. EF800? I'm also not sure what components you're referring to in your picture, especially not knowing which tube option you picked.

Did you get the build information from Dany with the wiring diagrams? That should answer most of your questions.

Title: Re: D-47 Tube Mic Kit DIY Solution
Post by: kmozart on December 24, 2020, 11:43:42 AM
I'm still not sure what build (tube option) you're building. EF800? I'm also not sure what components you're referring to in your picture, especially not knowing which tube option you picked.

Did you get the build information from Dany with the wiring diagrams? That should answer most of your questions.

Sorry, I’m using ef800 tube

I think I figured the capacitors, just wanna make sure I’m ok with the wiring of the transformer.

Yes I got it from Dany, there is no info for the Haufe.

There is also marking on the board showing R48 of 150M and U48 next to it. I assume it is if you are building U48. Should it be unpopulated or jumped?  I’m making U47. Than’ you!
Title: Re: D-47 Tube Mic Kit DIY Solution
Post by: salomonander on December 26, 2020, 01:27:25 PM
Can anyone elaborate on how this compares to the Flea body? Im in Germany, and importing this will basically cost the same as the Flea.... are these bodies galvanized? 
Title: Re: D-47 Tube Mic Kit DIY Solution
Post by: TillM on December 26, 2020, 02:09:46 PM
I am in Germany.
Can send you a picture of my U47 body from Dan.
I’ve some bodies I galvanized at Gleier and the quality from Dans bodys is great!
Title: Re: D-47 Tube Mic Kit DIY Solution
Post by: kmozart on December 30, 2020, 12:54:20 PM
Hi All!

I'm almost done with my U47 Clone. only waiting for the binder connector on the cable power supply side.

Question I have is about the testing;
Can I use k87 (copy) capsule instead of the Neumann K49 (original) for the initial test and voltage adjustments?

I use EF800 tube, Haufe BV08 transformer, Dany's kit, and AMI built power supply.

Thanks!
Title: Re: D-47 Tube Mic Kit DIY Solution
Post by: roger.unc on January 27, 2021, 04:46:34 PM
Stupid question, but I can't figure out how to disassemble the M23 9-pin female binder connector on the cable side. Binder's assembly instructions aren't helping. I can unscrew the gasket. And I see there is a groove for a wrench on the adapter. But the coupling nut spins freely. Can anyone who has figured this out chime in?

(I figured out how to disassemble the binder mic side male connector from the photos Dany provided).

Thanks,
Roger
Title: Re: D-47 Tube Mic Kit DIY Solution
Post by: Delta Sigma on January 28, 2021, 09:22:36 AM
Stupid question, but I can't figure out how to disassemble the M23 9-pin female binder connector on the cable side. Binder's assembly instructions aren't helping. I can unscrew the gasket. And I see there is a groove for a wrench on the adapter. But the coupling nut spins freely. Can anyone who has figured this out chime in?

(I figured out how to disassemble the binder mic side male connector from the photos Dany provided).

Thanks,
Roger

Definitely not a stupid question. I struggled with this. If I remember correctly, I connected it to the assembled mic side connector, then used a flat wrench on the grooves.
Title: Re: D-47 Tube Mic Kit DIY Solution
Post by: roger.unc on January 28, 2021, 10:39:31 AM
Definitely not a stupid question. I struggled with this. If I remember correctly, I connected it to the assembled mic side connector, then used a flat wrench on the grooves.

Bingo! That worked. Thank you so much!  --Rog