2203KK help

[magh8]

there are 2 pots in the amp side by side.I believe they are lables R101 and R102.which one is the bias pot?I was going to rebias it seing as it is running very cold from the factory but I'm not sure what pot is for the bias...help.....

 

[Loudness250]

ok, turn one of them just a little bit with the multimeter hooked up. if it doesnt change the reading then you turned the hum balance pot, so just turn it back how it was. If it does change the reading then you found the bias pot. It doesnt hurt to turn the hum balance , just put it back because it's probably balanced from the factory.

 

[FortinAmps]

there are 2 pots in the amp side by side.I believe they are lables R101 and R102.which one is the bias pot?I was going to rebias it seing as it is running very cold from the factory but I'm not sure what pot is for the bias...help.....

They are both bias pots.
VR101 adjusts Power Tubes V101 & V102
VR102 adjust Power Tubes V103 & V104

I've attached the schematic for you. Hope that helps

Cheers,
Mike

 

[magh8]

thanks guy,
I ended up going for broke last night and yep they bias in pairs.It's all set...

thanks for the info

 

[nbarts]

I wonder if you can put some 34s in it without changing resistors?

Wow, it's weird, it doesn't bias by outer inner pair, but by 2 on one side & 2 on the other as I understand. Correct me if I'm wrong.

 

[Loudness250]

there are 2 pots in the amp side by side.I believe they are lables R101 and R102.which one is the bias pot?I was going to rebias it seing as it is running very cold from the factory but I'm not sure what pot is for the bias...help.....

They are both bias pots.
VR101 adjusts Power Tubes V101 & V102
VR102 adjust Power Tubes V103 & V104

I've attached the schematic for you. Hope that helps

Cheers,
Mike

woah, forgot all about this thread, the reason I told him that one was a bias pot and one was not it because that's how my 2203x reissue was and I figured they'd be the same on the KK. I guess they redid the bias section too on that amp.