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Author Topic: where can i find the pinout of an rca ba-21 mic pre?  (Read 1511 times)

rjd2

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where can i find the pinout of an rca ba-21 mic pre?
« on: March 05, 2006, 01:38:09 PM »

any thoughts? thanks alot for the help-i did numerous google searches, and i couldnt find anything. i dont have a power supply, and have 3 of them i am planning on homemade lunchboxing together. i was told these do not run at 110ac, so im assuming i will need to find a power supply. thanks.
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rj krohn

rjd2

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Re: where can i find the pinout of an rca ba-21 mic pre?
« Reply #1 on: March 05, 2006, 08:22:19 PM »

ok, i dug around on this one, got the schematic, but still cant figure out what voltage these run at. are you smarter than i am at reading these? you probably are, cause i dont know s*** from shinola. sleuth this one and win a fatburger on me.
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rj krohn

Bryson

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Re: where can i find the pinout of an rca ba-21 mic pre?
« Reply #2 on: March 05, 2006, 09:10:11 PM »

I use a Power One HB250-0.1-A (250 vdc) on my RCA BA-1 amps, and imagine it'd be fine with a BA-21a.

Tom Mitchell's PS boards could also work:
http://members.aol.com/ecc81/ps.html
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