Hoffman Amplifiers Tube Amplifier Forum
Amp Stuff => Tube Amp Building - Tweaks - Repairs => Topic started by: Scsoul on November 23, 2016, 12:33:48 pm
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Im working on a 2 el84 trainwrel liverpool type and have a few questions since i cant log on at amp garage, on v1 pin 2 the wire coming from volume pot should it be a shielded wire grounded at one end? Also should i change anything in the phase inverter? And also the input i used a grounded wire should i also use a 68k or so grid stipper? Any help would be greatly appreciated. Thanks mark
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.....on v1 pin 2 the wire coming from volume pot should it be a shielded wire grounded at one end?
If V1 is a 12AX7 then pin 2 would be the input grid, so yes you can use shielded wire grounded at only 1 end.
And also the input i used a grounded wire should i also use a 68k or so grid stipper?
Could you explain what you mean by "a grounded wire"
Most guys here would use a grid stopper. I would too.
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I would use a shielded wire between volume pot and V1-2. I would not change anything about the PI. I would use a wire and a 68K between input jack and V1-7.
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Thanks guys, by grounded wire i simply mean shielded wire grounded on one end.