[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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