Hoffman Amplifiers Tube Amplifier Forum
Amp Stuff => Tube Amp Building - Tweaks - Repairs => Topic started by: rafe on October 23, 2024, 02:25:13 pm
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I have been enjoying this amp quite a bit lately had a weird issues that turned out to be a couple tubes (first two sj7's) beyond microphonic they would go into hellatious sounds ....I can tap the tube or amp lightly and it will stop ....-I have some coming. But it is time to finally address the Tremolo ....The amp has a replacement back cover, and I only have one original mahogany foot switch which I am saving to use on the GA-50T. I'm going to put a toggle through the back cover with enough lead to remove the back or just take off the toggle nut when I need access and run a wire from the cathodes of the 6v6 power tubes to the switch and from the 6v6 tremolo tube to the switch....That should do it .....
Gibson_ga_40_54_early.pdf (https://el34world.com/charts/Schematics/files/Gibson/Gibson_ga_40_54_early.pdf)