Hello,
I recently swapped out the trs jack. Afterwards it worked fine goes a few days, then it would randomly cut out, which could be fixed by lightly brushing a finger on the headphone plug or volume knob. I reflowed the solder on the trs and pot lugs, then the R channrl just died.
Resistances check OK. Voltages are basically OK, but all 0 voltage lugs read 0.4-0.5 mV, and lugs 2&4 are a smidgen over 10% high at 183.3. Both tubes have 2 filaments glowing, both diodes on the A tube socket glow. Tracing the red wire through the circuit measured 0 ohms, except across the pot, where it was consistent with the white wire at various volume settings. Switching tubes did not fix it. Switching the input interconnects still left the R channel dead. The headphones work fine on a different amp.
I did use a different brand of trs jack.
because I could combine shipping costs with other stuff I was ordering. Surely that should not be an issue because the jack initially worked.
Help! I am at a loss!
I recently swapped out the trs jack. Afterwards it worked fine goes a few days, then it would randomly cut out, which could be fixed by lightly brushing a finger on the headphone plug or volume knob. I reflowed the solder on the trs and pot lugs, then the R channrl just died.
Resistances check OK. Voltages are basically OK, but all 0 voltage lugs read 0.4-0.5 mV, and lugs 2&4 are a smidgen over 10% high at 183.3. Both tubes have 2 filaments glowing, both diodes on the A tube socket glow. Tracing the red wire through the circuit measured 0 ohms, except across the pot, where it was consistent with the white wire at various volume settings. Switching tubes did not fix it. Switching the input interconnects still left the R channel dead. The headphones work fine on a different amp.
I did use a different brand of trs jack.
because I could combine shipping costs with other stuff I was ordering. Surely that should not be an issue because the jack initially worked.
Help! I am at a loss!
