Trying to bulletproof some U2000 color transistors. We all know that these things get H-O-T and will either cause the pads to lift, burn up the transistor itself, burn the board, etc. This is due to the heat sinks being junk and not doing their jobs properly. The late model neck boards had new heat sink designs from the factory that alleviated the issue (for the most part), so with the help of a co-worker, I have fashioned 6 new heat sinks modeled after the late model factory ones and installed them (plus another new transistor) on the two U2000s I repaired last night. The new heat sinks are working great on both chassis'. I don't have a digital temperature gauge, but just based on touch and radiant heat, they are a vast improvement on the originals. Thinking about doing this to all the U2000/K7400/K7500/U5000 chassis' I come across. Here are some pics. Just wanted to share. Thanks.

































