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Test Your Carbon Comps First

Some manufacturers are now producing "carbon composition" resistors that are in fact spiral wound. I first encountered this when replacing the parasitic suppressors in a HF transmitter about 20 years ago. The new resistors didn't work, and I had to scrape the outer layer off one to understand why. So, a word to the wise - any carbon comp types purchased new from a general supply house like Mouser or Digikey should be inspected for this before you use them.



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  • Test Your Carbon Comps First - Triode_Kingdom 22:24:43 05/13/16 (0)

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