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Re: Wire-wound resistors as dummy test load
Original poster: "davep by way of Terry Fritz <twftesla-at-qwest-dot-net>" <davep-at-quik-dot-com>
>>>My guess is that the meter he is using to measure this is getting
>>>confused by the large amount of series resistance. I'd
>>>use a better meter.
>>>Also, for his application (steady-state) load, I wouldn't
>>>worry about the inductance.
>>
>>Dan
> Hi Dan, All,
>
> If this were the only application for which I ever might use a WW
> resistor, I wouldn't lose any sleep over it either. But if this is not an
> anomaly peculiar to these 4 units, awareness of such variations might be
> significant to other applications. If a meter were being "confused" by four
> almost identical resistors, then shouldn't I get four wrong answers of
> approximately the same size, perhaps with disagreement between meters, not
> 100%+ variation on the same meter?
What sort of leads are being used?
Are the test specimens mounted direct to the meter?
> Since I already have 1) an AADE L/C Meter Model II/B, 2) a Phillips PM
> 6303 RLC Meter, 3) a Boonton 71A VTLC Meter and soon a General Radio 1633A
> inductance bridge, what should the a priori recommendation "I'd use a better
> meter," suggest to me that I do next?
The one with the shortest leads...
best
dwp
...the net of a million lies...
Vernor Vinge
There are Many Web Sites which Say Many Things.
-me