Slide to rotary switch conversion

sticky1138

sticky1138

Well-known member
I am rehousing a Behringer and I need to swap this 4-position slide switch for an off-board rotary to make it work. My best guess is that it’s a 2P4T, but I can’t find a specs sheet for the switch and there is no available schematic for the full circuit.

Does anyone know how to “translate” this slide switch to a rotary? That is, which pads/lugs on the slide and rotary correspond to each other, or at least how I can go about testing each switch to determine that?

eQb0ocq.jpeg
 
Do you see a part number stamped on the switch anywhere?

There are few different configurations that might be inside, nothing we couldn't work out with a DMM if necessary though.

(Of course it'd be much easier with the switch removed, especially with that jumper between the pins)
 
No markings on the switch, but I'll post an update pic once I remove it. I am going to clip the legs to avoid risky desoldering, but I should be able to keep the rest intact.
 
This is the TP300. That SF300 doc is on my radar, but I'm trying to get another Behringer rehouse under my belt before I take on that monster!

Here is a gut shot of the switch:

qtpuGb8.jpeg
 
sticky1138 said:
This is the TP300. That SF300 doc is on my radar, but I'm trying to get another Behringer rehouse under my belt before I take on that monster!

Here is a gut shot of the switch:

qtpuGb8.jpeg
Click to expand...
Yeah, better to be really prepared for SF rehousing. My rehouse has been sitting on WIP box for a year and half after loosing my intrest on non working circuit. Tried to use rotary switch with option for Fuzz1+Boost&Fuzz2+Boost, but couldn’t get it work. I really should just check every trace contiunity or audio probe it, but haven’t had slightest motivation for it. :cautious:
 
I was able to track down this nugget, and based on my disassembled switch, I believe I am looking at the same thing.

1cB26.png
 
that makes sense, but now that it's unmounted, use the continuity tester to confirm it. Those long bars have to be the poles.
 
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