Smoke coming from transformer means........anyone?

Found an old tube rcv. turned it on and it started to smoke. I noiced the transformer was extremely warm. Will I cause any more damage turning it on? Shiould I replaced the transformer or junk it? Anyone able to help me?

lolo03-05-2002 11:02pm

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ghostrider45 Details Discussions Posts This discussion Message User 449 posts 03-06-2002 at 07:40pm Copy Comment URL Report Comment Edit Delete The Variac method doesn't work so well if the unit has a tube rectifier. The tube rectifier won't really conduct until the filament voltage gets close to specification. This point will be somewhere around 75-80 volts AC input. At this point you put about 60% of the B+ voltage on the caps. Better than full voltage, though.
jeffloistarca Details Discussions Posts This discussion Message User 1,004 posts 03-06-2002 at 07:54pm Copy Comment URL Report Comment Edit Delete Brian- thanks for the laugh!
fatparrot Details Discussions Posts This discussion Message User 1,314 posts 03-06-2002 at 11:22pm Copy Comment URL Report Comment Edit Delete Wasn't that a Deep Purple song from the '70's..."Smoke on the Transformer"? Happy Tunes!
nightdoggy Details Discussions Posts This discussion Message User 32 posts 03-11-2002 at 05:38am Copy Comment URL Report Comment Edit Delete The variac method is the very best method for new (weeks or months in the box) and old, although a switching power supply will be toasted by doing this-not a problem with vintage gear.
buscis2 Details Discussions Posts This discussion Message User 468 posts 09-19-2002 at 01:59am Copy Comment URL Report Comment Edit Delete You failed to mention the make and model. Is it an older SAE? (Smoke And Explode)

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