RCA BA6A Mono Valve Compressor/Limiter - 1950s FOR SALE - Soundgas
RCA BA6A Tube Compressor Limiter | Reverb Italia
1959 IKEGAMI-TUSHIN LIMITER COMPRESSOR, INSPIRED BY THE RCA BA6A. The Japanese design ads an extra gain stage before the first & It subs the 6SK7 … | Rca, Hifi, Kef