Im just about finshed with the SynchroTrem Tremolo but i have a few questions and build docs are still pending. What kind of vactrol does it use? and im not sure about this zener diode. is this one correct?
I think the original uses a VTL5C3, but just a heads up - vactrols can be super inconsistent and you might want to order a bunch and socket the part to see how it affects the circuit.