[Amps] Carbon film or metal oxide film resistors for low-power RF circuits?

[Pete Lancashire]

Not to push on company over another, I found some of this to be helpful

http://www.vishay.com/resistors-discrete/list/product-31025/

For those oldtimers, Vishey bought Dale.



> Hi Jim,
>   I'd suggest using mil type RLR or if you realllly want long term
> reliabilty use type RNC.
>
>   Either one will last near forever.  No comparison to carbon comp or even
> film.
>
> 73 & Good morning,
>   Marv WC6W
>
> http://wc6w.50webs.com/
>
>
> --- On Wed, 8/12/09, Jim Barber <audioguy at charter.net> wrote:
>
>> From: Jim Barber <audioguy at charter.net>
>> Subject: [Amps] Carbon film or metal oxide film resistors for low-power
>> RF circuits?
>> To: "AMPS" <amps at contesting.com>
>> Date: Wednesday, August 12, 2009, 1:06 PM
>> If you wanted a precision RF
>> instrument to last a long time without
>> significant component drift, would you use carbon film or
>> metal oxide
>> resistors?
>>
>> Assumptions:
>> (1) Little to no RF power dissipated in the resistors
>> themselves
>> (2) Frequency less than 60mhz
>> (3) There would be room for physically larger 1-watt
>> metal-oxide
>> (4) Cost isn't an issue (repair quantities, mostly)
>>
>> Looking for opinions, of course. I find myself replacing
>> carbon
>> composition units all the time, and was wondering if
>> metal-oxide would
>> be "better" than carbon-film for these purposes.
>>
>> Thanks,
>> Jim, N7CXI
>>
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>
>
>
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