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SMF forum in English. 2 sections tracked: Tube Amp Building - Tweaks - Repairs and Design a custom Eyelet or Turret Board.

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AB763 clone reverb hum - Help!

Quote from: sluckey on September 16, 2026, 11:22:16 pm The name ain't Suckley dude! Apologies, sorry Sluckey. Fingers typed faster than my brain! Please don't take offense.

AB763 clone reverb hum - Help!

Thanks for the additional comments guys. Helmholtz you are correct about the accuracy of the FFT app. I have spent a long time thinking it was 100hz hum however your comment led me to rethink this, and by comparing the hum I am getting with a 50...

Faceplate

Hey, its getting closer, how did you do the transfers for the control labelling around the pots, is it cut out from a printed or thermal label sheet? I've seen see-through label sheets that I think will fit in my little ebay printer and was wondering i...

AB763 clone reverb hum - Help!

Quote from: VintageRob on September 11, 2026, 09:55:39 pm … when the reverb level was turned up high … a noticeable 100hz hum (mains here is Australia is 240V 50hz) … with all controls to zero (and the reverb return input to V4 sho...

102 discussions collected since 2 September 2026. Track this forum by keyword →