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Oct 8 at 16:06 comment added DrMoishe Pippik @Fred, that is not a power transformer, but a common-mode filter choke, to keep RF out of AC mains.
Oct 8 at 0:09 comment added Fred Are you sure about that power transformer connection??
Oct 7 at 23:06 comment added BitLauncher How many Watts does it consume? If you have 2 230V incandescant bulbs/halogen bulbs of e. g. 60W, you could use them as voltage divider - perhaps a load of 10W would still work? Or take 8 old, unused notebook SMPS with ca. 19V output, use the output in series for supply of C6 and a 5V USB charger for powering C2, ... Search for an very old (heavy) device with a 110/220 VAC switch - and look inside, is there a transformator? Power of that transformator in Watts?
Oct 7 at 22:09 comment added vorobey Yeah, I thought about it, but I also want to learn from this opportunity. Also a new ultrasonic cleaner from Aliexpress would probably cost less the the transformer, and it is the only device I have that requires 120V, so it would be pretty pointless :)
Oct 7 at 21:45 comment added vir Why not buy a cheap 2:1 travel transformer? The power requirements look pretty modest so it shouldn't cost a whole lot and you won't have some potentially dangerous kludge on your hands.
Oct 7 at 20:59 history asked vorobey CC BY-SA 4.0