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Tube DIY Asylum Do It Yourself (DIY) paradise for tube and SET project builders. |
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Tube DIY Asylum Do It Yourself (DIY) paradise for tube and SET project builders. |
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In Reply to: DC voltage drop across choke vs resistor!!! posted by TomWh on March 17, 2017 at 18:25:10:
Copper has one of the highest positive thermal resistance coefficient (TRC) of all metals. For this reason, cold choke has lower DCR than when it is heated by current passing through and warmer environment of working amplifier. Metal in resistors has much lower TRC than copper, so value doesn't change much with temperature. Carbon resistors have negative TRC (their resistance drops with increasing temperature.
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- Copper resistance increases with temperature. - sser2 17:13:27 03/18/17 (0)
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