RCA BA-6A Limiting Amplifier Restoration
following photos show the restoration of two of these amplifiers; Serial #3
and Serial #1621.
As received both were very dirty, both poorly repainted, and both with numerous modifications
and incorrect components. However both are complete!
as received. This is the best chassis (least rust) of the two. Transformers
correct but electrolytic cans are no longer "plug-in" type.
of #3; mods are evident (red circles)
up of #3. Although this is the best chassis there is still rust as seen here
6SK7 sockets. Note also that the rubber grommets have deteriorated.
with the power transformer removed. Recall this is the best chassis but plenty
rust is still evident. This corner will have to be touched up.
showing chassis rust. This is hard to repair without repainting the chassis.
of #1621; mods are evident (red circles)
of #1621 showing incorrect power supply choke.
shelves for #3 and #1621; both need refinishing.
Completed photos of #2 (it's actually the
same color as the above photo)