I am working on a 1997 Marshall 1987X 50 watt amp using two EL34 output tubes and three 12AX7 preamp/phase inverter tubes. The amp has a shorted primary on the Drake 1202-324 transformer. (I have never come across this problem before.) So it is going to need a new power transformer. Unless you object, I am going to go with a Hammond P-T290GX.
p-t290gx.pdf
Unfortunately I cannot find the exact schematic for this amp. The schematics I did find were close but not exactly my amp layout. Plus, there are no voltages indicated on the schematics. And finally, I could not find information on voltages/current for Drake transformer.
p-t290gx.pdf
Unfortunately I cannot find the exact schematic for this amp. The schematics I did find were close but not exactly my amp layout. Plus, there are no voltages indicated on the schematics. And finally, I could not find information on voltages/current for Drake transformer.
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