RCA: BA-31C Preamp, Vero Layout (The Balmoral Broadcast)
The RCA BA-31C would have been found in broadcast consoles of the day (late sixties), as a microphone preamp module. I think it may have been the starting point for the Hudson Broadcast, as they look quite similar and I’ve heard some references made to RCA. If it is what they used, I can … Read more