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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: Why not use inductors instead of resistors? posted by cheap-Jack on March 26, 2007 at 11:47:33:
Copper has a temperature coefficient of resistance that is much larger than the nichrome wire use to make commercial wirewound resistors. What this means is that the resistance will increase as the unit heats up. This is not a deal breaker, it's just that you need to design for a somewhat lower cold resistance and then check the voltages after everything has been running for a while.Of course, this also ruins the whole precision angle, but again, it's not necessarily a deal breaker as line voltages usually vary by several percent anyway.
-- Dave
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Follow Ups
- just be aware... - Dave Cigna 15:47:36 03/26/07 (1)
- Good concern ! - cheap-Jack 09:19:26 03/27/07 (0)
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