In Europe, small resistors are available in both carbon film (cheaper,
> higher tolerance) and metal film (a little more expensive but also
> closer tolerance). Medium power (1-3W) are almost exclusively metal
> film, and in higher power ratings it's mostly conventional wirewound.
>
> The carbon film and metal film resistors up to 3W are available in all
> values from 1 ohm to 1M. The same applies for other materials used in
> "film" resistors, for example cermet or tantalum nitride but often not
> specified.
World-wide, there are now metal composition resistors available.
They are off-the-shelf, inexpensive, temperature and life stable,
handle very high overloads, and have virtually zero inductance. I am
evaluating samples now, and will beta test them in critical
applications and report the results.
73, Tom W8JI
W8JI@contesting.com
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