Hi Reg,

Our definition of "worked fine" was that the measured SWR was
consistent with the rated DC resistance and tolerance. As I recall,
we were using 51 Ohm 5% resistors. Typical SWR was under
1.1 up to 100 MHz, and 1.2 to 1.3 at 500 MHz for the bent-lead
(lesser performing) version.

These loads were just for handy lab use, and were not products or
calibrated test equipment, of course.

Ed

"Reg Edwards" wrote in message
...
Hi Ed.

Regarding your big 2-watt carbon resistors at 500 MHz -

what values of reflection coefficient or SWR were experienced when you
say they "worked fine". Can you remember? Or did you have some other
way of assessing "fine" performance?

The DC value has to be allowed a resonably large tolerance about its
nominal value and the HF performance cannot be any better than that.
----
Reg, G4FGQ