>
>At 06:28 AM 2/24/2000 -0700, measures wrote:
>>Weird science?. . If you have output, the tubes can not be shorted, so
>>there should be no Ip on standby.
>>
>>>I turned the thing off.
>>>
>>Good news.
>>
>>>Any Ideas what happend ?
>>>Anyone had a simular problem in the past ?
>>
>>
>>
>>>I am also seeking for a Service Manual to
>>>download or faxpoll.
>>>
>>Thanks to Skipp, I have s 922 service manual. The ''troubleshooting
>>section'' is one page. .
>
>Rich, wouldn't it be reasonable to surmise that he's lost the cut-off bias,
a possibility
>perhaps because of a contact failure in the much-maligned TL-922 T/R relay?
Although the cathode bias contacts in the relay can temporarily arc, I
have never heard of one with welded contacts.
> That would certainly explain the plate current on standby, and if the
>normally-open operating bias contacts are OK, also explain why the rig
>appears to be normal in "operate" mode.
>
Ip on standby is usually caused by a shorted tube. If this situation
exists in an factory-stock 922, the danger to the filament transformer is
great.
>
cheers, Pete
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