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I'm pretty sure all metal and carbon film resistors are spiral cut. Unless you're in the GHz, the inductance shouldn't be an issue.
Use carbon comp if you think it might be.
Personally, I use Vishay PR01, PR02 and PR03 metal film 5% series resistors for everything up to 1M ohm. I buy the common value 100 at a time to get the cost down to a few cents each.
VR37 resistors above 1M. Rated for 3,500 volts - handy for those electrostatic sets.
BTW standard voltage ratings are
1/4 W = 250 volts
1/2W = 350volts
1W = 500 volts
2W = 750 volts
Last edited by bandersen; 06-11-2025 at 12:48 PM.
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