>
>> Do other 3-500 z amplifiers exhibit the same spitting/arcing symptoms?. I
>> believe I read about the same kind of "strange" stuff happening with the
>> Kenwood 922 and 922a's. Am I correct?
>>
>> Len
>
>Len,
>
>This stuff isn't strange at all. Nearly all amps will arc if driven
>with modest to high drive power when the tank is undercoupled to the
>load.
>
>The tank has all that energy, and it has to do SOMETHING. If it can't
>deliver current it delivers voltage.
>
>What is "strange" is how many people are gullible enough to swallow
>the "parasitic" story.
During a telephone conversation with Mr. Rauch in late-1990, he told me
that he had seen plenty of parasitic damage in the 400 SB-220s that he
had repaired. Mr. Rauch did not design the SB-220.
If your amplifier arced mysteriously, it might be interesting to measure
the resistance of the VHF parasitic suppressor resistor.
... ...
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
|