[AMPS] 4-1000

[Rich Measures]

>> True, Peter.  However, since the RF peak V rating of vacuum variable 
>> capacitors is 60% of the DC/60Hz rating...
>Interesting; I've never heard of this derating requirement.  

It's in the Jenning Radio Co. catalog.  

>What 
>causes the change in breakdown voltage with frequency?
>
I am not certain, although I have a suspicion that arcing ability 
increases with frequency. .......  I have seen some incredulous arcs in 
my 432MHz 4cx250R amplifier.  I have seen some incredulous tune-C arcs in 
my SB-220 at 110MHz.  
Rich---

R. L. Measures, 805-386-3734, AG6K   


--
FAQ on WWW:               http://www.contesting.com/ampfaq.html
Submissions:              amps@contesting.com
Administrative requests:  amps-REQUEST@contesting.com
Problems:                 owner-amps@contesting.com
Search:                   http://www.contesting.com/km9p/search.htm