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Whats the proper way to TS a SS guitar amp?

J

Justa_me

Jan 1, 1970
0
Help is appreciated

The Amp is a gibson G20 from '71

original symptoms were low output. (that was last year, now its motor
boating)

I have a tektronix audio sig gen but don't know what/how to input
signal at the amp's guitar jack input.

Tha amp is "motor boating" whenever I plug anything (sig gen or
guitar) If I disconnect the this stage from the amp the signal is
amplified and clean when I inject a signal from the sig gen.

Is there a place I can post a schematic of this amp for others to
review and help me understand whats what.

Thanks for your time and concideration
Steve

e_mail: Steve98331atYahooDOTcom
 
J

John Fields

Jan 1, 1970
0
Help is appreciated

The Amp is a gibson G20 from '71

original symptoms were low output. (that was last year, now its motor
boating)

I have a tektronix audio sig gen but don't know what/how to input
signal at the amp's guitar jack input.

Tha amp is "motor boating" whenever I plug anything (sig gen or
guitar) If I disconnect the this stage from the amp the signal is
amplified and clean when I inject a signal from the sig gen.

Is there a place I can post a schematic of this amp for others to
review and help me understand whats what.
 
R

Rheilly Phoull

Jan 1, 1970
0
Meanwhile why not replace all the electrolytic capacitors, (faulty ones can
cause the motorboating) I would think they are dryed out by now and it would
be a logical start to the project, maybe even a cure.
 
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