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December 11th 04, 04:02 PM

On 09 Dec 2004 19:12:18 GMT, (Avery Fineman)
wrote:

Of course the resistor lead contribute some inductance. In fact,
most of it. However that inductance is directly calculable based
on old, available data. What remains is the resistor body itself.
A very quick approximation of that body would be to get a scrap
of kitchen aluminum foil and wrap it tightly around the body with
the overlap tight around the leads to make contact. [won't make
much difference because the body, being larger in diameter than
the leads, will have much less inductance than those leads]

Sorry, Len, I stand to be corrected (no doubt) but surely this way of
shorting the ends together is going to make matters much worse? Aren't
you going to end up with a significant amount of capacitance between
your outer foil and the inner spiral of resistive film? Isn't that
going to just throw another complex variable into the mix and probably
completely change the resistors SRF?
--

"What is now proved was once only imagin'd." - William Blake, 1793.