Something is going on with my PS100. Worked great for a couple of years. Lately, it’s sounded like crap no matter what amps I use with it. Could It be the power tubes are going bad? Any thoughts?
Thanks!
Hi John, Thank you for contacting Fryette Amplification. It is most likely worn-out power tubes causing this issue. I recommend that you install a new matched pair of power tubes, see link below. No biasing necessary. Cheers! Gil
https://www.tubesandmore.com/products/vacuum-tube-6l6gc-jj-electronics
I keep seeing 6L6 tubes referenced, my owners manual calls for 6550 tubes, have the tubes changed on the new units?
No changes, PS-100 runs a pair of 6550 power tubes,
PS-2A runs a pair of 6L6 power tubes.