RCA BA-2C Tube Preamp
- Front view with gain control knob.
- Inside, the original wiring was so nice!
- Here you can see the replaced power transformer.
This vintage RCA vacuum tube preamplifier was missing it’s power transformer. Fortunately I had the schematics and a transformer that would fit the bill. A couple power resistors were required to get the voltages spot on, but in the end it worked out well. The unit got a full re-cap and a fresh set of New Old Stock vacuum tubes. The new owner even received an original manual!