Can anybody tell me what kind of amplifier this is? Vintage tube amp.

[j_wood]

Can anybody give me any information on this amplifier? I know nothing about the brand and all I have is model # SA I56 and serial # 4363. Vintage tube amp....

[flyingpork]

Just a little confused when reading the schematics. I have a Sunn A212- on the schematics it has two 8 ohm speaker outputs. The two speakers that are in the...