How can I fix my amp??

HI

WHEN I PLAY ON MY BASS AMP THE BASS SOUND IS COMING OUT OF THE SPEAKER NORMALLY BUT AFTER A WHILE OF PLAYING THE SOUND STOPS AND AFTER A COUPLE MINUTES IT START'S WORKING AGAIN

WHAT COULD BE THE PROBLEM THANX

TOM
January 2010

Hi Richard. Thanks for the reply. I have a schematic for the amp if that helps. Its readily available on the net. Thats where I got it. Anyway I look forward to seeing what you come up with. Again...Thank you for your help.

Tommy
January 2010

seems the feedback resister that determines the gain of an amplifier has gone low,ie creating to much gain it is basically being nearly,if not overdriven,a factor of 30 times is good for a nice sound,usually twin channel amps have another circuit with an output chip which have low to no feedback resister between the input and output pins on the chip,as i havent looked at this type of amp i can,t say for sure i,ll try and find a drawing for the board to find out.,it may have mosfet,or darlingtons,or fets,etc being seventies amp,i prefer mosfet,darlingtons,anyway,seventies stuff is good.

richard
January 2010