• WARNING: Tube/Valve amplifiers use potentially LETHAL HIGH VOLTAGES.
    Building, troubleshooting and testing of these amplifiers should only be
    performed by someone who is thoroughly familiar with
    the safety precautions around high voltages.

HELP to ID push pull/Single Ende

Status
Not open for further replies.
I purchased a vintage tube amp Columbia yesterday that need repair I need help to ID if this schematic push pull/Single Ended & power amp/integrated

thank you
 

Attachments

  • for web.jpg
    for web.jpg
    1,002.2 KB · Views: 129
  • 6l6.jpg
    6l6.jpg
    422 KB · Views: 112
To answer the questions, it is a stereo push pull power amplifier that does not have its own volume control. It was intended for use as part of a larger system, probably a console stereo. The volume and tone controls were part of the matching tuner. It can be used stand alone with the addition of a volume control. It is probably 15 to 30 watts per channel.

This unit used a selenium rectifier in the bias circuit which can release a toxic stink when they fail, which is likely. The capacitors probably need to be replaced too. If this all sounds unknown to you, get the assistance of someone who understands. Just plugging it in will probably blow up some parts.
 
Status
Not open for further replies.