I recently found two of these set out for the trash. Appears to be some kind of tube amp. Further investigation shows this to be a two channel amp. One channel for bass and one channel for treble.
This has a power transformer, two output transformers, two chokes, and some type of open frame transformer.
Tube compliment:
1ea 6SC7
2ea 6SN7
2ea 5U4G
2ea 6SJ7
8ea 6V6GT
Could this be a viable biamp project?
Controls:
1 = Bass 0-3-6-10
1 = Off, Low, Med, High
Output terminal:
treble - ground - bass