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I tested the headphone and AUX outputs this morning through a guitar amp. The headphone out sounded even more distorted than the Wurlitzer's internal speakers and the AUX output was a little low in volume so it was hard to tell if the internal speakers were distorting or the AUX. I temporarily disconnected the Wurlitzer's internal speakers and the signal sounded clear through the AUX output.I came across another forum post on this site that sounds like a similar issue: Troubleshooting Wurlitzer 200a amp board for bias and crossover notch distortionOne user stated that they figured out a temporary solution by using a 1k trim pot across R58 with a 270r resistor on R34. I tempted in a 300r resistor on R34 with a 1k pot on R58 so I could adjust the bias in real time to see if I could hear any audible difference. Once the Wurlitzer was powered on the resistance jumped from the ~205r setting I had set the pot to, to ~8.6M. I slowly swept the pot up and down and did not hear any difference so I do not know if my problem is necessarily in the bias network like the other user's problem was linked above?
I tested the headphone and AUX outputs this morning through a guitar amp. The headphone out sounded even more distorted than the Wurlitzer's internal speakers and the AUX output was a little low in volume so it was hard to tell if the internal speakers were distorting or the AUX. I temporarily disconnected the Wurlitzer's internal speakers and the signal sounded clear through the AUX output.
I came across another forum post on this site that sounds like a similar issue: Troubleshooting Wurlitzer 200a amp board for bias and crossover notch distortion
One user stated that they figured out a temporary solution by using a 1k trim pot across R58 with a 270r resistor on R34. I tempted in a 300r resistor on R34 with a 1k pot on R58 so I could adjust the bias in real time to see if I could hear any audible difference. Once the Wurlitzer was powered on the resistance jumped from the ~205r setting I had set the pot to, to ~8.6M. I slowly swept the pot up and down and did not hear any difference so I do not know if my problem is necessarily in the bias network like the other user's problem was linked above?
