Up for sale here is this set of 4 brand new Onsemi transistors--two MJE15032G and two MJE15033G, plus 4 new silicone insulators. These are genuine Onsemi transistors, and are invaluable for vintage electronics restoration. They are great subs/replacements for a number of vintage transistors, and can be used to replace the 2SA566 (replace with MJE15033G) and 2SC680 (replace with MJE15032G) transistors found in the Sansui AU-888 and Sansui AU-999 amps.

These are a modern TO-220 transistor package, which can easily be used to replace the old TO-66 transistors. Don't buy counterfeit TO-66 transistors on eBay, just use these far superior new transistors for better performance at a lower cost. Here's how to install them:

Cut off the center pin, then bend the two legs at a right angle so they point behind the transistor. Clean the heat-sinks off with a paper towel or shop rag to remove any old heat-sink compound. You don't need new heat-sink compound with the silicone insulator.  For each new output, put the new silicone insulator on the back.  Then mount the new transistor on the heat-sink so the two legs go through the two holes and the metal tab of the transistor lines up with the top hole where the old transistor was bolted down. Once you have installed all of these and the pins are installed in the sockets, you can bolt them down to the heat-sink/amp board using the old transistor mounting bolts. The trick here is that the metal tab is the transistor's collector, the same connection as the third pin that you cut off, so by bolting it down you are electrically connecting it to the board. There's a picture in this listing to show how they mount. The transistors in the pic are different, but it's the same concept. The heat-sink and other transistors are not part of this listing.

US shipping and handling is $6, and international is $20, no matter what quantity you buy. All of my small parts are set up for combined shipping--just use the "add to cart" feature and then check out at once, and the shipping will be automatically discounted.

Looking for more parts? I have power switches, feet, pushbuttons, top case screws, bottom screws, faceplate screws, white LED fuse lamps, blue LED fuse lamps, 6.3v bi-pin bulbs, 8v bi-pin bulbs, 12v bi-pin bulbs, wired 8v 60ma bulbs, new power cords, new main capacitors for the Marantz 1060/2230, wired Pioneer speaker plug replacements, new 630v yellow film capacitors at 30 different values, a large variety of transistors for vintage stereo repair, new Wima film capacitors for stereo repair, new 250v yellow film crossover capacitors, and more. Just use "add to cart" on everything you want and then check out for combined shipping.