Kley De Jong | 10 months ago
In this video I take a look at a noisy buzzing AA1164 Princeton Reverb amp clone I built a few years back. It has developed a noise problem. Especially if you turn up the reverb control.
My troubleshooting process involves isolating variables (swapping in tubes, checking a different speaker, reverb tank). I test voltages. I check the schematic.
For this issue I would focus on a few ideas:
1) Good tubes
2) Good reverb tank
3) Shielded cables to the reverb tank
4) Better grounding
Build thread - https://www.tdpri.com/threads/old-reliable-a-princeton-reverb-builderino.1073915/
Time Stamps:
0:00 - Intro
0:46 - Hum problem
1:25 - After fix
2:03 - What I did to fix it
8:15 - Tone clips
16:14 - Dialing in an amp's sweet spot
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