Topband: Non-inductive resistors

[Brad Rehm]

"can anyone recommend a source for relatively inexpensive
non-inductive resistors."

Joe,

I've used the Ohmite TCH35P TO220-style resistors that are available
through Mouser (page 384 in the current catalog).  You can also see
them at their web site by searching for TCH35P-470, which should give
you the 470 Ohm version of the part.

The 25 Watt versions of the part (TBH25P) are a  little less
expensive, but I'd pay the extra buck for the higher-power version.
My first TCH35Ps lasted several years.  Then, suddenly I lost several
of them in storms.  They're robust but not indestructible.

Mouser also has Caddock non-inductive power resistors.  The MP930 type
is rated at 250 Volts and 30 Watts.  It's also a little less expensive
than the Ohmite.

Surplus Sales of Nebraska has 2 Watt carbons, but their prices are
ridiculous.  You might also try Mendelssohn's in Dayton.  I think
their web site is MDH.com...or something like that.

Four or five 2 Watt carbons in parallel seems to be the must durable
arrangement.  I'd parallel whatever kind of resistor I use.

Finally, I've bought quantities of 2 Watt carbons from MC Howard here
in Austin at very reasonable prices.  You might call him at
512-837-2525.

73,
Brad, KV5V