The next problem to think of - which would be on my very high suspicion list for a 10 year old amp - is component failure that causes the reverb driver or recovery tube to go out of bias.Ĭheck the voltage at every pin on the drive and recovery tubes and list them here. RCA connectors, pin to ground on each jack. You need to have signal going from the driver tube, to the pan, to the recovery tube, and no footswitch bypass, to get reverb. Pull and replace the reverb drive tube AND the reverb recovery tube. On a vintage amp you can test for a bad stomp switch by switching the RCA cables to reverse the switch assignment and see if the other switch triggers the circuit.īut you cant do that with a reissue amp that uses the 14 stereo plug.įootswitch circuits are notorious troublemakers. Unplug it to see if its got the amp stuck in the reverb bypass state.

Here are some tests that can easily be performed by an end user: 1. To be honest, Im surprised that a reissue with Chinese caps lasted 10 years.Īt 10 years even a good cap is at end-of-life, so that would be high on my list of things to consider. If your footswitch gets stuck in the grounding position then there is no signal and youll have no reverb. The footswitch works by grounding input to the recovery stage (vintage) or by grounding the output from the recovery stage (reissue). Shooting from the hip, my first guess would be to say that youve either got a bad footswitch or a bad cathode bypass cap on the driverecovery tubes, which has biased your reverb circuits tube into cutoff. The reverb circuit switching is different. Search for RC-273 3 right angle RCA cables, if it turns out its not the reverb driver tube. Thought it was the tube, but it turned out to be the cable that connects the tank to the amp. Tokai Reborn Old Reissue 2010 Professional Would Recommend.

Tokai reborn old reissue 2010