I grabbed this off Richard (Hybrid88) from the FS section last week. It's a germanium monitor amp, I think around the mid 60's. It seems to be in pretty reasonable condition, needs an obvious cap job, but it uses 2x 8 pin connectors for everything- in/outs, ins with gain reduction, 220/230/110/120v in (it has a built in power supply), and who knows what else?
So far I've really struggled to find pin outs for these connectors, and a schematic for the unit. Does anyone in the brains trust have any leads? They seem to be less utilised and less desirable than the BA-31s, which I believe are fixed gain line amps, and are all over the web.
I was hoping to turn this into a preamp, but a tech in the USA I chased up for a schem suggested it wasn't worthwhile, so at the moment I'm just hoping to get it into working condition and go from there.
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RCA BA34C Schems and pinout?
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RCA BA34C Schems and pinout?
Alistair McLean
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Re: RCA BA34C Schems and pinout?
definitely a 34 and not a 43 ? I got the 43 info ....
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rob - TRM Endorsed

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Re: RCA BA34C Schems and pinout?
Definitely a 34- I believe all BA series ending in 4 are monitor amps, and all ending in 3 are preamps, but I'm not 100% on that.
Thanks for checking Rob
Thanks for checking Rob
Alistair McLean
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Re: RCA BA34C Schems and pinout?
I have the manual (BA-34C) including schematics. PM or email me.
Barney Loveland
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