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Old 02-03-2010, 06:56 PM
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leadlike leadlike is offline
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Join Date: Apr 2008
Location: Lancaster, Pa
Posts: 956
I got the power resistors today, only there is a single problem: they don't do anything to the voltage. For example:

A few posts up, I figured to drop a 350 volt supply voltage to 240 volts, I would need 687.5 ohms to do the job. Well, putting a 700 ohm resistor on each secondary arm (leaving the center tap to go to ground) gives me about 330 volts (measuring AC from one secondary arm to ground, or the center tap). Removing those resistors, I still have 330 volts. Absolutely no change. Putting on several Kilohms of resistors doesn't change anything, either.

What do I need to do to drop the B+ here? These resistors were the very first thing the transformer secondaries met, before reaching the rectifier circuits or anything else on the tv chassis. I should think these resistors should be able to bake off at least a little voltage, even the electrical engineers at work were on board with my plan. It's all just a bit frustrating.
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