Quote from: g1 on July 29, 2023, 01:52:58 PMNothing going on except momentary switch and LED.

O rly? Interesting, thanks. Do you happen to know how it's wired?

Switch across sleeve & ring (exp wiper), LED across sleeve & tip (3.3V)?

Oh this is lovely.

I tried to unplug the spade connectors from the 15" driver so I can make a power measurement of the amp, and the black "board" that holds the lugs popped right off the frame.

So now I need to remove all of the spades, and remove the driver to fix the terminal board.. which probably means removing the power amp as well. Cripes.

And this, because some Chinese guy couldn't properly set an aluminum rivet!

Howdy folks,

Anyone know what's going on under the hood of the CB BE Dlx Tap? Is it just switch hardware, or is there some fancy logic involved?

Being it connects to the footswitch jack, I'd think it would have to be a pretty smart device..

This is a new-to-me Polytone TE, made in 1997. First thing, I can't find a schematic that's specific to the model. In fact, the one I'm using doesn't even show the power amp or the speaker wiring. What I've found is available here:

https://drive.google.com/drive/folders/1OrH3eF8Fvftk0LxFIvtqVoZEsBE7Gi6k

My PA uses the MJ802 / MJ4502 outputs and may match one of the 110W drawings in the above folder.

One other question: The footswitch is missing. Does it use latching or momentary switches? (I'm assuming the former..). Anyone have a spare?

Oh, also, please take a look at the photos.  See the flying resistor? The caps too small for the clamps, shimmed up with foam tape? The general ratty wiring? Has someone modded it, or are these all "stock features"?

Thanks in advance, more to come as time permits.