In Reply to: RE: Would you mind... posted by tube wrangler on September 17, 2012 at 19:22:56:
I'm really confused; the heat is generated based on I^2R. Or, of course if the Vmax of the resistor is exceeded, but that's a different story line.
A low voltage heater or cathode supply (both high current) has the ability to cook the resistor at much higher temperatures than a plate supply.
We're referring to, AL housed resistors and "commonly" affixed to an AL chassis. I'm not seeing the magnetic field?
What part of the circuit is more sensitive, albiet SE vs. PP?
FWIW, I use the RH for heaters sized to NOT cook and bolted to the chassis.
Cathodes get Mills (Huntington) NI 50w bolted to the chassis. When switching from MRA's in series to a single 50w bolt style, I couldn't not hear any difference. Ample convection of air movement around them is something I do address.
If were talking an extreme audible difference, an albino monkey coffin in these positions, will surely make your ears bleed.
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Follow Ups
- RE: Would you mind... - wheezer 22:56:00 09/17/12 (0)