>
>
>On Sun, 11 Oct 1998 01:29:16 -0700 (PDT) igor rosky <irosky@yahoo.com>
>writes:
>>
>> I have just lost a 3-500z in TL922, it has also caused a lot of arc
>>damage to the load capacitor, which has very fine plate spacing, does
>>anybody know if this is still available from Kenwood, or is there a
>>suitable substitute that will fit in its place.
>>
>>Igor
>>
>
>Arc damage more likely caused the 3-500Z to fail.
How would an arc at the Load-C cause tube failure? An arc looks like a
low Z load -- and that would produce little or no grid current compared
to a 50 ohm load. .
> That Load capacitor
>does not like high VSWR or hot switching from that archaic TX-RX relay.
amen
>
>Kenwood still carries TL-922 parts, check their web page or call
>310-639-5300 for the Service Dept.
>While you are at it make sure there is no damage to the grid and bias
>circuit components.
>
>Cant blame this one on parasitics I bet!
>
If the damage is only to the Load-C, I agree. Only a high-pot will tell
whether the fil. helixes are bent or not.
Rich. Measures. Web site: www.vcnet.com/measures
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