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Old September 13th 04, 12:04 PM
SpamHog
 
Posts: n/a
Default non-inductive resistors: metal-film vs carbon ?

I shredded a few carbon resistors and noticed that many have the
carbon layer laid out in a spiral pattern around the cylindrical core,
up to several turns.

I also shredded a few metal-film ones, but could not figure is the
metal was on a single layer or not, and how it was connected to the
leads.


I wonder which best approximates a non-inductive resistance.



Do "spiral" carbon resistors have a significant inductance?

Do all metal-film resistors have a single layer, or are there some
multilayered or (G_d forbid!!) spiral-layered, with plentiful
capacitive bypass???



I have found a set of 16 x 100 ohm / 2W metal-film resistors which I
am ready to assemble them into a 400 ohm / 15W (derated) terminator
for a T2FD, but I'll wait for advice...


tnx de n1jpr/i2
filippo
http://filippo.ru.ru