Ron's Audio
                                             Sound for the regular guy


  Pioneer SX-82 Stereo Amplifier


    I restored a Pioneer SX-82 which is a late 60's vintage stereo. With it's complement of 29 tubes, 28 watts per channel output, it was a nice challenge.  I replaced all the signal caps with Illinois caps (yellow), all the electrolytics, burnt wire-wound cathode resistors in the outputs, many of the tubes along with the Russian 6P15P-EV's in the outputs. I uses those because the original 7189A's are not available and current EL84's would not be able to handle the power out.  It ended up with a nice sound and was worth the effort.


    Because the original electrolytics were not available I replaced them with some JJ's and added the two beside the transformer as you can see from the photo.


It takes patience, a steady had and time to replace all the capacitors in a receiver like this. The yellow caps are new.

Close up of what's inside.


Pioneer SX-82 Spec Sheet

Pioneer SX-82 Schematic