building the reverb damper

In order to facilitate installing this new reverb damper mechanism, I will mount the reverb tank on a plywood base.  (This will cause the tank to protrude higher into the space behind the speaker; I hope it doesn't interfere with the speaker, I haven't carefully tested this!  If it doesn't all fit properly, I'll just have to start making changes...)







 

...As you can see, I've used a cannibalized 6mm pot body for the control shaft, so that I can attach the same type of knob that the rest of the control panel will have.  I'll cut a hole in the speaker baffle to expose this reverb damper panel.  With my usual laser-printed label and epoxy finish, it should look pretty decent!

The knob travels through about 180 degrees; ccw is damper-off,  cw is damper-on.  The bent wire rises up and contacts the springs, when the reverb tank is in place.  The wire will be covered with felt -- at least, that's what I'll try first.











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