Re: Weir HSS100/4 PSU blowup
It's a normal TO220 package. Metal tab, it's clipped to a heatsink with the appropriate insulator.
It's mt in front of me at the moment, but I think it's a Motorola part.
It appears to be part of the regulation circuitry. The chopper may well be self-oscillating, the mosfet enables/disables it.
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