Transistor Substitutions - Audiokarma Home Audio Stereo Discussion Forums I am not sure if there is another list like this on the forum or for that matter how many more there are, but I thought I would share this one I stumbled on it while searching for trannies replacements First I want to thank Mike from Hudson Valley HI FI for posting this on his site (no
dlucys guide to Harman Kardon Twin Powered series 430, 630, 730 and . . . The fourth era of Harman Kardon's solid state stereo receivers were the Twin Powered series: This thread is a guide to those models, their specs, and pointers to schematics and restoration threads for each Note: If you have additional information on any of these models or have a great