Sony C38 48v mod?

[Richard Crowley]

Assuming you don't have a "B" model (which already has P48 power support).

You could simply reproduce the power circuit in the C38B.
The complete service manual is here: http://www.coutant.org/sonyc38b/c38b-service.pdf
and the schematic diagram is on page 5.

[Dan Kennedy]

I've done this for a number of these mics.

I build a simple two resistor to zener and cap rig on a 9v battery clip and plug it into the battery connector, then tack the other end of the resistors to the audio output leads.

It's completely reversible and cheap.

Two 6.81K resistors, a 9.1v zener and a 220uf/25v cap.

[Richard Crowley]

Yeah, I've done that two resistor, Zener and capacitor mod on some old ECM-C22 microphones. Seems to work fine.

[cm231805]

Thanks for the awesome ideas, guys.

Dan, I'm not as savvy as I'd like to be in this department... could you offer anymore guidance in this project or perhaps photographs?

Thanks again. Really appreciate the insight.

[Dan Kennedy]

Sure, once I get home from AES I'll rig one up and shoot a picture.

[ray_subsonic]

Dan, this would be appreciated. And Thankyou ..

[cm231805]

Any luck on this Dan? Hope AES was a blast!

[Dan Kennedy]

Yeah, I've got some pictures and a schematic.

If you send me an email from the GR website I'll
send the files to you via Yousendit.

Not huge, but a bit much for an email.

[Jonathan@FPA]

Originally Posted by Dan Kennedy

Yeah, I've got some pictures and a schematic.

If you send me an email from the GR website I'll
send the files to you via Yousendit.

Not huge, but a bit much for an email.

Happy Thanksgiving Dan!

That would be a pretty awesome thing to post, hint hint. I am lucky enough to have mostly C-37a's, so 48volts isn't enough- ha! But I think I still have some ECM-22's, 23's, 56's, etc. somewhere, and would be good to convert.

Best-
Jonathan