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Vintage threads from the first ten years

Re: BIAS POTS

:

7/19/2000 4:25 AM

Re: BIAS POTS

David:

I picked up some multi-turn cermet pots at a surplus store that have leads as thick as a 1 watt resistor! Unfortunately I have no idea where you would order new ones like that. (I have two cheap ones that are missing leads that broke off when I was trying to mount them in my Peavey Classic 50...

)

Steve Ahola

P.S. One advantage with the multi-turn pots is that you can usually dial in the desired bias voltage without having to replace all of the bias resistors a few times until the voltage is in the proper range. (I usually end up replacing the resistor to ground just once to get it right.

) So if you don't mind experimenting with the bias resistors you could try using just a regular 10k trimmer. That of course depends on the amp... on a Peavey Classic 30 I really wouldn't want to take that mofo apart several times just to fine-tune the bias circuit!

7/20/2000 1:03 AM
DavidB	Thanks for the info Steve, just don't trust those lil legs in the bias!I guess I'll get out the drill and put in another manly 2watter, hell it's just a fugly homebrew! db

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