Express build bias - strange outcome

Express, Liverpool, Rocket, Dirty Little Monster, etc.

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MikeR670
Posts: 85
Joined: Sun Jul 10, 2016 7:56 pm
Location: B.C. Canada

Re: Express build bias - strange outcome

Post by MikeR670 »

Oh you meant those 470 ohm 5 watts I put on the b+2 lines going to the output tubes. The schematic showed 1k on each, I didn't have any so I put two 470s in series. They're not connected to the pot, just my pic not clear - that pot was to be my variable bias resistor. I did put a 27k idiot resistor in after it, to ground.
MikeR670
Posts: 85
Joined: Sun Jul 10, 2016 7:56 pm
Location: B.C. Canada

Re: Express build bias - strange outcome

Post by MikeR670 »

Ok all good, rebuilt it and checked joints etc. Got bias voltage both sides and it's adjustable by the pot. Anything from -30 ish to -74.

I fired it up and I'll start a new post on that lol

Thanks for all your help!
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pompeiisneaks
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Re: RE: Re: Express build bias - strange outcome

Post by pompeiisneaks »

MikeR670 wrote:Ok all good, rebuilt it and checked joints etc. Got bias voltage both sides and it's adjustable by the pot. Anything from -30 ish to -74.

I fired it up and I'll start a new post on that lol

Thanks for all your help!
awesome!

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tUber Nerd!
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