N
n cook
- Jan 1, 1970
- 0
Well sort of as still functioned and no downstream damge, but replaced of
course anyway.
USA kit 120V, powered up in UK at 240 V this LM317T set for 15V out
survived 40 or 50V instead of 25V at its input.
Clamped to heat sink with a thick Ali bar pulled against the body so
sandwiched between 2 bits of ali. The grey PTFE/Teflon or whatever it is
insulator was "welded" to the metal of the V Reg and all lettering
disappeared from the other face. Anyone else seen this before, no explosive
eruptions from the body at all.
course anyway.
USA kit 120V, powered up in UK at 240 V this LM317T set for 15V out
survived 40 or 50V instead of 25V at its input.
Clamped to heat sink with a thick Ali bar pulled against the body so
sandwiched between 2 bits of ali. The grey PTFE/Teflon or whatever it is
insulator was "welded" to the metal of the V Reg and all lettering
disappeared from the other face. Anyone else seen this before, no explosive
eruptions from the body at all.