This thread has some info:
http://www.diyaudio.com/forums/pass-labs/4153-threshold-s300-output-transistors-help.html
http://www.diyaudio.com/forums/pass-labs/4153-threshold-s300-output-transistors-help.html
You can call Pass Lab they will know. The transistors are the same in the Threshold S150 and others. I still have a S150 and I called Pass Lab a spoke to Nelson and he sent me some more outputs. The problem is these transistor or no longer made, they were made by Motorola and Mot sold that business a long time ago. I will at the ones I have and let you know the part number, however you will have to find some ones that the spec are close and you will have to match them. The best source is On Semi.
Thanks Dennis,
Any ones has the S350 schematic ?
I thought in that thread Peter Daniels said he had the schematics.
Perhaps you can contact him?
Dennis
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