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I typically buy 1W and 2W resistors (most 1W are the same size or smaller than the 1/4W -1/2W carbon they typically replace) from mouser or digikey and I haven't had issues despite only sometimes bothering to spec high voltage. The place to be careful is B+ boost (600-1500V) focus dividers, and electrostatic deflection sets that divide 6KV with multiple resistors. The higher 100k-10M parts I try to spec higher voltage for.
Another possible issue is if the film is an inductive spiral and your using it in tuner or IF circuits.
Last edited by Electronic M; 06-11-2025 at 08:34 AM.
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