I just got a concert bass, and of course I've got the common problem of not having the footswitch to toggle the distortion and boost. I know the old sunn switches were kinda universal, since they could be used to switch vibrato and reverb on one amp and then be used on another to switch the distort and boost. Would using a double button fender vibrato/reverb switch with dual RCA plugs possibly work? Every sunn switch I've found on ebay is going for wayyy too much, and I just need a reasonable solution, whether its that the fender switches will work, a schematic for the sunn switch, or a substitute that can be modified to work.
