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Power Transformer lights up dim bulb
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Have you checked for shorts between windings? Maybe primary to secondary is shorted or one secondary winding to another. Since you already have it hooked up, what voltages do you get out of the secondary? If the bulb is bright, I'm guessing there is a short somewhere. Of course, watch your fingers!"I took a photo of my ohm meter... It didn't help." Enzo 8/20/22
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That's what threw me at first. Everything appears to ohm out okay and no shorts between windings or to the transformer chassis, but sure enough it lights up that 100W bulb like christmas. I did a quick voltage measurement with it on the dim bulb and the secondary was 1.5V and the filament around 500mv. Do you think it is safe to take measurements off of the dim bulb? I've never been down this road and don't really want to see one of these melt down in front me.
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Your meter can only do the grossest of tests. Would you know if that 256 ohms ought to be 258 ohms? No. Windings rarely short end to end, but turn to turn is way more common, and your meter would never know. Also failed insulation in the windings could allow an arc to form at voltage, but your meter only uses a volt or two, so it never shows up in tests.Education is what you're left with after you have forgotten what you have learned.
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