Post by mauro on May 26, 2018 4:30:24 GMT
Rob,
You have my sincerest thanks!
You fixed my amplifier!
With the information in your post I was able to find the fault.
The resistor and capacitor at pins 1 and 2 of the 6SL7 phase inverter that went to the 1st 6L6 were reversed. I found it right away when there was no signal at one of the grids of the 6L6's, after that it was just a matter of studying that part of the schematic and realizing what had happened.
I'm not sure if it was my error or if I followed what was there because at some point someone clipped the resistor and resoldered it, I believe the coupling cap was replaced as well even though I believed the amp was untouched.
At midnight this amp went from a PIA to a full rich sound.
Thank you Ron, Ben and Rob for your guidance,
Mauro
Now back to the W1700.
You have my sincerest thanks!
You fixed my amplifier!
With the information in your post I was able to find the fault.
The resistor and capacitor at pins 1 and 2 of the 6SL7 phase inverter that went to the 1st 6L6 were reversed. I found it right away when there was no signal at one of the grids of the 6L6's, after that it was just a matter of studying that part of the schematic and realizing what had happened.
I'm not sure if it was my error or if I followed what was there because at some point someone clipped the resistor and resoldered it, I believe the coupling cap was replaced as well even though I believed the amp was untouched.
At midnight this amp went from a PIA to a full rich sound.
Thank you Ron, Ben and Rob for your guidance,
Mauro
Now back to the W1700.
