[Amps] Ten-Tec Centurion

R.Measures r at somis.org
Thu Nov 11 10:10:58 EST 2004


Ian -- The Tune-C on my SB-220 has a potential withstanding ability of 
c. 3600v.  For the Load-C it's about 1000v.

On Nov 11, 2004, at 7:03 AM, Ian White, G3SEK wrote:

> R. Measures wrote:
>>> when the input relay is closed but the output contacts are not. The 
>>> PA  then has full drive but no load, which could lead to very high 
>>> voltages across the tank components.
>>
>> Ian --  Would not the Load-C be likely to arc with no load?
>
> Not in general. In the unloaded case, C1 and C2 of the pi-tank form a 
> capacitive divider across L. Since the capacitance of C2 is always 
> much higher than C1, the RF voltage across C2 will be lower.
>
>>>
>>> ...
Richard L. Measures, AG6K, 805.386.3734.  www.somis.org



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