Got in a Premier B-160 Club Bass. Someones already been in there to make some changes, but didn't do any work in order to bring this amp up to modern safety standards. I can't tell what has been changed and no luck tracking down an official schematic. I re-drew this from a what I could make of a hand drawn version schematic of this particular version. If anyone is familiar, take a look at this to see if there are any errors. 4.7k on the plates of a 12AX7 seem like a very low value load resistor, but I'm not familiar with the circuit.
**edit: updated and corrected schematic below**
I don't know why anyone would take the time to open it up and not clip out the polarity cap and install a proper bonded 3-wire mains plug. The customer complained about experiencing shocks on occasion.
**edit: updated and corrected schematic below**
I don't know why anyone would take the time to open it up and not clip out the polarity cap and install a proper bonded 3-wire mains plug. The customer complained about experiencing shocks on occasion.
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