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Hoffman 610 Lost B+

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09-11-2015, 09:35 PM

bandersen

RCA 741PCS

Join Date: Mar 2009

Location: Chicago, IL

Posts: 8,814

Ohms law will give you the wattage. There's 260 on one side and 140 on the other of R178 for a difference of 120 volts. P = (V * V) / R or about 8.7 watts. A good rule of thumb is to double the resistor so I'd go with a 20W resistor.

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