MK-U47 - build thread

[rainton]

Oh yeah!! 

 

[Pip]

;D :-* :'(



It sent me through all kinds of feelings. This is bordering on pornographic!

It truly looks gorgeous. Well done.

 

[evilcat]

Oh my !!!!! this is too cool !!!!!!

 

[o3misha]

Pip, all new U47s had a VF14 tube. The nuvistor was merely a retrofit so users could use a commonly available tube. At the time many studios replaced tubes routinely *before* they would fail in order to avoid troubleshooting during a session.

Of course one of the main motivations behind the VF14 was the single voltage power supply. But that technique led to a quite unique circuit, and since that circuit is so simple, every one of its very few components plays some part in its sound. Apart from that, the VF14 is lower noise than most tubes. Also, there is the underheating aspect - few tubes can stand severe underheating for so long.

Andreas Grosser's FET retrofit seems like cool solution. To my knowledge, he doesn't sell it separately, though.

1. Talk to Andreas about his VF14er. Its the tube which can work in U47 without modifications.
2.Its not true that VF14 is less noisy than other tubes
http://www.andreas-grosser.com/profile/interview-with-andreas-grosser/
3. VF14EF is possible to buy when you send your U47/48 to Andreas for repair.

 

[tonycamp]

max, that is a thing of beauty! any idea when she'll be available for purchase, and how much?

I said it before, and i'll say it again, I'm dying to give you my money!!!

 

[fishdrop]

Woooooooooow. DIY is a crazy virus, isn't it!!!!



really infecting.
Can't wait to see the ready-to-go  kit.

 

[ioaudio]

Thanks guys.
And sry it's taking longer.
Instead of making vague assumptions about the timeline to finally release this project (and it's pricing) i thought i better post pics of the progress.

 

[JW]

I imagine this question has been asked before. If so, can someone direct me to where it's been discussed.

Just wondering what the difference is between this transformer and the one Max was/is offering w/ the MK47 kit?

 

[Pip]

I imagine this question has been asked before. If so, can someone direct me to where it's been discussed.

Just wondering what the difference is between this transformer and the one Max was/is offering w/ the MK47 kit?

This one was built I believe by AMI in Kansas to Oliver Archut's measured spec's.

http://tab-funkenwerk.com/id53.html

Max's is built by him in Austria to his measured spec's.

http://www.groupdiy.com/index.php?topic=35667.0
Also Max's comes usually as part of a kit and is PC mounted were Olivers is a classic type with leads. I own one of each and they are both class kit!

 

[ioaudio]

Pip, i'm pretty shure that you mixed up something, both transformers are made by me.
The Bv.08c from the Mk47 Kit is made from the same lamination footprint, but lower stack height to fit the smaller housings.
My new Bv.08 is full size, full stacked height and wound on 4 seperated chambers per coil (eight chambers total) just like the original Neumann Bv.08.

 

[Pip]

Pip, i'm pretty shure that you mixed up something, both transformers are made by me.
The Bv.08c from the Mk47 Kit is made from the same lamination footprint, but lower stack height to fit the smaller housings.
My new Bv.08 is full size, full stacked height and wound on 4 seperated chambers per coil (eight chambers total) just like the original Neumann Bv.08.

OOOOOOPPPPPS I totally screwed up you are correct I thought I was in another thread. My appologies. I thought I was in Melodeaths thread. Man I suck!

Yes Max does make both and they are awesome. I only own the one of his. The MK47 and it is awesome. I totally plan on buying this one when he is done.

I will do what ever the community wants. Leave my Dumbness for all to see and learn from as I did or remove it and cast it into the ever growing cyber abbyss for all time. Max I will do what ever you desire.

Has a similar feeling to totally botching a punch-in. Argh!

 

[ioaudio]

No worries, everyone can see that it's just a mixup.

 

[Citrus Hill]

I'd like to get on the list for a pair of these if possible.  Looking forward to seeing the finished product.  Anything worth having is worth waiting for!

 

[rainton]

I'd like to get on the list for a pair of these if possible.  Looking forward to seeing the finished product.  Anything worth having is worth waiting for!

Indeed!
BTW any news Max? 

 

[Phrazemaster]

Just to chime in again...lovin' this project! Put me down for one max!

Any thoughts as to when this will be ready?

 

[ArnoldLayne]

I want one too ! 

 

[Randallizer]

I'd love to put my name down for one of these if possible. It's a really lovely project!

 

[North]

What would be the sound and output difference in using the full stack height compared to the lower stack height ? Thanks

 

[wolfgang]

Hello Max!

Can you give us an update on your progress?
I am highly interested!!!!!

regards from Styria!

Wolfgang

 

[Brotastic]

me three!!!  very interested