bias adjustment?

[Old Bob]

:hi:

morning! I just got a great amp. Triode TRX 88PP.
Features
Circuit format: KT88 parallel push-pull stereo integrated amplifier
Rated output: A class 50W +50 W (8Ω)
Bias method: self-bias system
Frequency Characteristics:-2dB (10Hz ~ 60kHz)
SN ratio: 91dB




It says self bias. On the top it has a small meter, a switch that says “separate” and goes on/off. It has a knob to turn to ???select?? tubes to test or bias. Any ideas? Leave it alone? Try to adjust bias? I could not get a good picture. In the middle, front, you see the “dial”, the tiny toggle switch, and the knob labeled bias adj. send private message please! THANK YOU!! bob

 

[Mike]

Bob, you can turn the knob to each V setting, slowly, after 10+ mins and no music playing through, to ensure the needle is in the bias range (the fat part on the dial).

 

[bzr]

Bob, just play with it. If it blows up, take it back to the guy that sold it to you & tell him the magic smoke escaped & you need another one. .... hey Mike...:wave:

 

[cmalak]

Bob, just play with it. If it blows up, take it back to the guy that sold it to you & tell him the magic smoke escaped & you need another one. .... hey Mike...:wave:

I second the motion :thumbsup:

[emoji851]

 

[Old Bob]

THANKS KEV!! it is so much fun to play with! it seems to run a bit hot now
.

 

[bzr]

Thats just the smoke warming up...:scholar:.. & now a word from our sponsor :reallymad::reallymad::reallymad: