Bias pot clockwise = ?

Get support and show off your MetroAmp JTM 45 kit builds.

Moderator: VelvetGeorge

Post Reply
Broken
New Member
Posts: 39
Joined: Sat Feb 19, 2005 10:54 pm

Bias pot clockwise = ?

Post by Broken » Sat Feb 18, 2006 11:53 pm

I've got my JTM 45 ready to go but don't get my multi until Monday. I want to set it up cold just to make sure I don't cook my tubes

What direction do you turn the bias pot to increase the neg voltage to the grids?

Billy Batz
Senior Member
Posts: 8566
Joined: Fri Dec 10, 2004 8:49 pm

Post by Billy Batz » Sun Feb 19, 2006 9:55 am

If its wired 'normaly' youd turn it towards the pot side of the chassis for the largest bias voltage (= the lowest/coldest plate current).

Post Reply