>Hi Carl
>Really no reason for 3-watt resistors in
>a metering string for 1ma or less meter
>movements.
Semi-true, however, 1mA in 10M-ohms is 10W which =s 10kV. With 500WV
resistors, a series string of 20, 0.5M units would be required. With the
1M-ohm, 2W resistors available from Mouser, the same job could be done
with 10 resistors.
>Have a look at the
>Vishay/Dale CMF series resistors. 500v
>working with 900v withstanding. 3/4
>watt @125 deg C or 1 watt @70 deg C.
>They are less than .30 cents each in
>small quantities. E-mail me direct for
>HV meter divider boards 6KV and under,
>2.5 X 2.5 inches. They are not on my
>web-site yet.
>Cheers, Paul
>
>PAUL HEWITT
>WD7S PRODUCTIONS
>QRO HOMEBREW COMPONENTS
>http://wd7s.home.att.net
>
>
>> -----Original Message-----
>> From:
>> amps-admin@contesting.com
>> [mailto:amps-admin@contesting.com]On
>> Behalf Of carl seyersdahl
>> Sent: Monday, May 20, 2002 4:24 PM
>> To: 'Amps'
>> Subject: [Amps] resistors
>>
>>
>> can anyone point me to a
>> source of resistors other
>> than mouser and
>> digi-key??? I can't believe
>> there aren't more resistors
>> than what they
>> list!!! I need some 750k
>> -3w-either ww or mof. these
>> need to be at least 500
>> v rated, to be used in the hv
>> metering ckt. of an amp!!!
>> thanks to all!!!!
>> carl / kz5ca
>>
>>
>> ______________________________
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>ilman/listinfo/amps
>
>_______________________________________________
>Amps mailing list
>Amps@contesting.com
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>
- R. L. Measures, a.k.a. Rich..., 805.386.3734,AG6K,
www.vcnet.com/measures.
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