Vibrato circuit under Repository-circuits -49633- : Next.gr
RobRobinette Guitar Tube Amps - Here's an annotated schematic with the signal path for a more popular Gibson amp, the GA-40 version 3, 6V6 push-pull, 2 channel guitar amp with tremolo. | Facebook
Bias Modulating Tremolo Circuits
12AU7 Tube tremolo
Tremolo with 12AU7 | diyAudio
Tremolo with 12AU7 | diyAudio
Add Reverb & Tremolo
Stand alone tube tremolo
Delta-Trem Tremolo-Panner In-depth - Effectrode
Organ-Tone! – Hardway Vintage Electronics
Add Vibrato (?) To Any Tube Amp! (1962) – Preservation Sound