here's a dead one -- too much sine wave testing -- this puppy was happy putting out almost 50W at 0.011% THD, then went poof. Note the blown V- capacitor (1000u/63V).
are you very sure the cap's not in backwards? a 63V cap should 'survive' to about 80V for a short burst, however if it's polarity was reversed, death could take up to a minute or so as the electrolyte heats up eventually boiling (then again, death could be instant too)
well.. if the dark we can see through the board is tracks, why would we be able to see the tracks throught the board? hmm.. anyway.. if they are.. then either both capacitors are in the right way.. or neither are...
uuuuhhhhhh, I think you guys are right. I had some boards made with a different capacitor orientation (perpendicular to that shown) and just soldered them up.
uuuuhhhhhh, I think you guys are right. I had some boards made with a different capacitor orientation (perpendicular to that shown) and just soldered them up.
