On Feb 12, 10:58 pm, wrote:
I have tested the 4 rectifier diodes and they all seem to be opened
(VOLTAGE DROP IN BOTH DIRECTIONS). Do you thing that these shorted
diodes could have shorted the IC regulator and the chopper transistor?
Thanks

replace the diodes, remove the chopper transistor AND the PTC, and
power the set up with 100w bulb in series int he mains line. be wary
if it glows brightly. if it is dim or fades, you will know your
rectifier is probably ok now.
-B