Had not noticed those. I am usually looking for precision
voltmeter multiplier resistors 1% or better. But for analog meters 5% would
be OK and you could have a trimmer resistor. Also at 250PPM/degree C. That
would be a change of .25% for each 10 degree rise in temp. Also, not good
for most research applications. But still OK for Analog meter applications
if they are not located in a hot location and the dissipation kept low.
I wonder if they really stock them. Have not dealt with Fannell
but have Newark and MCM.
73
Bill wa4lav
At 02:28 PM 3/25/02 +0000, Steve Thompson wrote:
>On Monday 25 March 2002 13:07, Wlfuqu00@uky.edu wrote:
> > Yes, there are special resistors rated for high voltage use, however they
> > are very expensive and you usually have to meet the minimum line item price
> > requirement when you place an order.
> > 73
> > Bill wa4lav
>Philips (now known as BC Components) have VR25 and VR37 families of
>resistors, rated at .25W, 1600V dc and .5W, 3500V dc respectively. Values in
>the Farnell (links with Newark in US) catalogue I have go from 1M2 to 10M,
>but an old Philips reference book lists vlaues 100k to 22M and higher,
>depending on range. It also lists a VR68 range with 1W dissipation and 9.4kV
>rating.
>
>Steve
>
>
>
>
> >
> > At 06:56 AM 3/23/02 -0800, Richard wrote:
> > >? In my experience, the max-V-ratings of ordinary resistors are somewhat
> > >lower. However, I have seen some Dale 5w, resistors that are rated at
> > >15kV. The conductive film is a long spiral.
> >
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