These power switches fit onto SOME of the Fisher 400, 500 and 800 receivers and other hi-fi audio units that used the "OEM" (original equipment manufacturer) type controls made by Clarostat or Centralab.
Note these are DPST (double pole, single throw) just like most of the originals out there that have failed ! Fisher and others used the "double pole" to double the current handling ability of the switch by ganging the two switch sections together. You will note your original wiring probably has the two bottom lugs tied together and the two "upper" lugs (furthest apart ones) tied together. Some other audio makers used one switch section for the unit and one for the aux receptacle on the rear panel.
These are NOT the type that just pushes onto the rear of the pots. You must disassemble your control to install this switch. It has 3 mounting tabs. See the pix, dont make a mistake make SURE this is the switch you can use. If you need this part installed on your control, email us, we can do that for a separate fee.
We can also custom make many controls and repair some as well. Easy to find in Plymouth, Michigan, I am the "King of Controls". Oldradioparts tod ten is our address.... reverse last two words. Please take a close look at the pix and do not order if you are not sure.
Again, this is the OEM version, requires your control to be disassembled to be installed, it is NOT the push on mounting version. This was used on SOME Fisher 400, 500 and 800. SEE the PIX to be SURE.
thanks and hope to see some of you at the Vintage Electronics Expo Fri-Sat July 14/15 in Kalamazoo, Mi. I am one of the main parts sellers at these shows.