Moby

Re: Bv8,12,11 replica - Support Thread
« Reply #100 on: May 20, 2018, 04:03:33 AM »
Hey Moby,

Didn't realize there were different lams available when I placed my order. Are you sending an assortment and we pick or is anything standardized yet? Talking about the BV08
Hey, standard option was Ni78 lamination and also there was option to purchase extra Ni49 lamination package.
For microphone transformers,  BV.8,  Bv.11,  Bv.12, etc.. contact me at mobyelectronics at gmail dot com


JW

Re: Bv8,12,11 replica - Support Thread
« Reply #101 on: June 29, 2018, 04:03:21 PM »
On U47 schematic, the secondaries have white as hi and blue as low.

Is that the case with your transformer Moby? Appears from the diagram that blue is hi and white low.


Moby

Re: Bv8,12,11 replica - Support Thread
« Reply #102 on: June 30, 2018, 07:51:26 AM »
On U47 schematic, the secondaries have white as hi and blue as low.

Is that the case with your transformer Moby? Appears from the diagram that blue is hi and white low.
Just follow the schematics. Transformers are identical to the originals.
Don't be confused with the electrical/windings arrangement diference.
For microphone transformers,  BV.8,  Bv.11,  Bv.12, etc.. contact me at mobyelectronics at gmail dot com

JW

Re: Bv8,12,11 replica - Support Thread
« Reply #103 on: July 25, 2018, 12:17:26 PM »
Back at this again. Maybe a dumb question, but is it okay for the laminations to be connected  with mic body? I was thinking it would mess with the magnetism, but perhaps not? A couple pictures I've seen of Max's MKU47 shows the transformer screws seemingly going through the lams and mounting to part of the mic body.

Trying to figure out how to mount in the bottom bell.

noulou

Re: Bv8,12,11 replica - Support Thread
« Reply #104 on: July 25, 2018, 01:07:05 PM »
Back at this again. Maybe a dumb question, but is it okay for the laminations to be connected  with mic body? I was thinking it would mess with the magnetism, but perhaps not? A couple pictures I've seen of Max's MKU47 shows the transformer screws seemingly going through the lams and mounting to part of the mic body.

Trying to figure out how to mount in the bottom bell.

It is mounted the same way in the original.

Moby

Re: Bv8,12,11 replica - Support Thread
« Reply #105 on: July 26, 2018, 06:28:23 AM »
Yes, no worries. Original U47 Bv.08 is mounted on transformer plate withouth any insulation.
For microphone transformers,  BV.8,  Bv.11,  Bv.12, etc.. contact me at mobyelectronics at gmail dot com

JW

Re: Bv8,12,11 replica - Support Thread
« Reply #106 on: August 13, 2018, 12:50:40 PM »
Every other. So, one U+I ni78, than one Ni49 U+I.

In this method, since you're alternating sides when stacking anyway (like in video), it's aligning one side all Ni78 and the other Ni49. Just verifying this is correct? They are equal top to  bottom, but they aren't alternating like flipping sides? Just all Ni78 on one side of the windings and all Ni49 on the other?

Thanks for the help!

JW

Re: Bv8,12,11 replica - Support Thread
« Reply #107 on: August 13, 2018, 01:47:12 PM »
Just realized that the stacking video is a BV11. Is a BV08 also 34 U's and I's?  Now I'm lost with lots of laminations everywhere.

Oh!. Just realized the very first "U"  lamination you insert is actually not on the bottom. It's actually the one on the right that you slip underneath. I was coming out on the wrong end there.

Edit: Ah. Now I can't tell. Which U is on the bottom, the left or right one?
« Last Edit: August 13, 2018, 01:55:53 PM by JW »

JW

Re: Bv8,12,11 replica - Support Thread
« Reply #108 on: August 13, 2018, 02:12:06 PM »
Okay,

I get it now. Moby, I think there's a stacking error in that stacking tutorial video. At 3:15 you drop an "I" "oops" and the sequence gets messed up. Which explains why the last lamination ended up on the left side, when you started on the left side.

??

Moby

Re: Bv8,12,11 replica - Support Thread
« Reply #109 on: August 13, 2018, 03:59:21 PM »
Okay,

I get it now. Moby, I think there's a stacking error in that stacking tutorial video. At 3:15 you drop an "I" "oops" and the sequence gets messed up. Which explains why the last lamination ended up on the left side, when you started on the left side.

??
Haha, yes, right. I was too lazy to repeat it, it's really hard to assemble with the camera in front. But all is clear, not a big deal. One U, one I and so on .... ;) edit: yes, same for the Bv.08 and Bv.11
For microphone transformers,  BV.8,  Bv.11,  Bv.12, etc.. contact me at mobyelectronics at gmail dot com


Re: Bv8,12,11 replica - Support Thread
« Reply #110 on: August 16, 2018, 12:23:41 PM »
Moby, I have to say here : your BV8 transformers are the best on the Earth at the moment. Congrats bro....Forget about AMI.. Sorry Oliver (RIP)

Moby

Re: Bv8,12,11 replica - Support Thread
« Reply #111 on: August 16, 2018, 07:18:50 PM »
Moby, I have to say here : your BV8 transformers are the best on the Earth at the moment. Congrats bro....Forget about AMI.. Sorry Oliver (RIP)
Dear Misha, thank you so much for your kind words and your support. It means so much to me.

For microphone transformers,  BV.8,  Bv.11,  Bv.12, etc.. contact me at mobyelectronics at gmail dot com

EmRR

Re: Bv8,12,11 replica - Support Thread
« Reply #112 on: September 11, 2018, 08:56:14 PM »
I had the Moby BV.12 next to a new Neumann BV.12 with a Neumann capsule and they were extremely close in sound.  If I had to say there was any difference, it'd be the Neumann being slightly more mid-centric, and the Moby being a little more exciting on the top and bottom.  I could only tell that difference  from comparing controlled samples; a tube change is a bigger difference.  Inductances and resistances were very close too, with both being in the zone for the original BV.12 winding data sheet.  I'd have no problem putting the Moby version in any original Neumann U67 repair; I'd never think twice about it.   It is the exact size and mounting method of the real thing.  Recommended; I like it!
« Last Edit: September 12, 2018, 09:17:27 AM by EmRR »
Best,

Doug Williams
Electromagnetic Radiation Recorders

"I think this can be better. Some kind of control that's intuitive, not complicated like a single knob" - Crusty

"Back when everything sounde

Moby

Re: Bv8,12,11 replica - Support Thread
« Reply #113 on: September 12, 2018, 04:16:08 AM »
I had the Moby BV.12 next to a new Neumann BV.12 with a Neumann capsule and they were extremely close in sound.  If I had to say there was any difference, it'd be the Neumann being slightly more mid-centric, and the Moby being a little more exciting on the top and bottom.  I could only tell that difference  from comparing controlled samples; a tube change is a bigger difference.  Inductances and resistances were very close too, with both being in the zone for the original BV.12 winding data sheet.  I'd have no problem putting the Moby version in any original Neumann U67 repair; I'd never think twice about it.  Recommended; I like it!
Thanks a lot on your review! 
For microphone transformers,  BV.8,  Bv.11,  Bv.12, etc.. contact me at mobyelectronics at gmail dot com

Re: Bv8,12,11 replica - Support Thread
« Reply #114 on: August 02, 2020, 07:23:42 AM »
I seem to be a bit late to these threads . .  (didn't do much DIY in the last couple years) .. but I'm keen to learn if more of these transformers are available / coming?

Cheers,
Evan

Re: Bv8,12,11 replica - Support Thread
« Reply #115 on: August 02, 2020, 05:07:42 PM »
I ordered and recieved a BV8 last month :)

TillM

Re: Bv8,12,11 replica - Support Thread
« Reply #116 on: August 02, 2020, 05:31:18 PM »
Just write Srdjan a mail.
He still have everything in stock !

Moby

Re: Bv8,12,11 replica - Support Thread
« Reply #117 on: August 03, 2020, 06:53:59 PM »
Hey guys, sorry for the delayed response and thanks for support :) Yes, feel free to contact me I have all  "the guys" on stock all together with some other models.
Keep safe!
For microphone transformers,  BV.8,  Bv.11,  Bv.12, etc.. contact me at mobyelectronics at gmail dot com


 

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