Question:
This is more of a general question...not something I need to do right now but I was wondering about.
Is it possible to bias your own amp / measure the bias yourself? I am fairly proficient in electronics...I've rewired my guitar, had some experiance with older tube-type amateur radios, and have a multimeter and everything, but is biasing an amp one of those things that I just don't want to try myself? What are the chances of me killing myself? I know there are some high voltages that can remain there even after the amp's off for a while, but what sort of risk are we talking about here?
Would I need an oscilloscope as well?
Answer:
Originally Posted by Flyguy This is more of a general question...not something I need to do right now but I was wondering about.
Is it possible to bias your own amp / measure the bias yourself? I am fairly proficient in electronics...I've rewired my guitar, had some experiance with older tube-type amateur radios, and have a multimeter and everything, but is biasing an amp one of those things that I just don't want to try myself? What are the chances of me killing myself? I know there are some high voltages that can remain there even after the amp's off for a while, but what sort of risk are we talking about here?
Would I need an oscilloscope as well? you can do it...if you look up "amp biasing" or "guitar amp biasing" on google you'll probably get some links. i know some people do their own biasing. the chances of you killing yourself aren't that high unless you decide to start touching capacitors and such.
Answer:
Originally Posted by thesteve you can do it...if you look up "amp biasing" or "guitar amp biasing" on google you'll probably get some links. i know some people do their own biasing. the chances of you killing yourself aren't that high unless you decide to start touching capacitors and such.
You'd also want to stay away from the whole B+ wiring area (as they are hooked up to the caps) unless, of course, you discharge the power caps.. the area includes pretty much all of the tube plates, power caps, and anything inbetween (resistors and such).
I've never rebiased, but basically, as in any situation with live high voltage, think before you do, use the one-hand method, and use common sense.