[Boatanchors] Potentiometer Size

[J. Forster]

You really should not put DC or high voltage AC through a pot like that.
It was never meant for that kind of service.

At a semi-educated guess, I'd think 1/2 Watt max.

-John

==============



> Bill,
>
> I'd try to estimate how much power it's going to dissipate, and back
> into the answer.  For instance:  500 volts (squared) divided by 500K
> ohms = 1/2 watt.  It's unlike that a half meg audio pot is ever going to
> be subjected to any significant power.
>
> Al
>
> On 7/9/2010 3:55 PM, Bill Stewart wrote:
>> Is there a rule-of-thumb to indicate the wattage of a potentiometer by
>> its physical dimensions?  I'm trying to figure the wattage of a 500K
>> audio pot. that's about 1  1/16 " dia. by about 1/2 " (pot. only, switch
>> is additional) long.
>>
>> Thanks, Bill K4JYS
>>
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> --
> Al Klase - N3FRQ
> Jersey City, NJ
> http://www.skywaves.ar88.net/
>
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