[Amps] Urgent help needed, pse. My 91b is scared of contests.

[Dudley Hurry]

Or shorted tube.   Try different band, but I bet there is a bad tube.

73's,
Dudley
WA5QPZ


At 03:56 AM 10/29/2004 -0700, you wrote:

>On Oct 29, 2004, at 2:53 AM, Robert Thain wrote:
>
>>Hi,
>>This is the third contest that my 91b has failed even
>>before the start.  Its works ok at other times.
>>
>>I installed my 91b at the contest site, (where it has
>>worked before). But it goes to 'Fault' straight away.
>>
>>My patch leads and dummy load are tested and fine. I
>>do not believe there is RF getting in.
>>
>>Tuning in to a dummy load with 9.5W in nothing happens
>>then at 10w it goes straight to fault and locks out.
>>In an instant the TUNE indicator shoot hard over the
>>the right just before defaulting to Fault.
>>
>>I do not know if its my imagination but i get an idea
>>of a smell of O-zone (arcing) from the 'band select
>>switch'/'tune up' area. But this might be just my
>>imagination playing tricks.
>
>Robert -- I would high-pot test the tubes to make sure there isn't a 
>concealed  problem.  Also, a 3 - 5 foot plastic tube, with one end held to 
>one's ear, makes a good sonic direction finder.  If you find that the 
>arcing is coming from the 10m or 15m L contact on the bandswitch, there 
>may be an intermittent parasite.
>>
>>Please help
>>
>>Thanks
>>Robert G0HGW
>>
>>Send instant messages to your online friends http://uk.messenger.yahoo.com
>>_______________________________________________
>>Amps mailing list
>>Amps at contesting.com
>>http://lists.contesting.com/mailman/listinfo/amps
>>
>
>Richard L. Measures, AG6K, 805.386.3734.  www.somis.org
>
>_______________________________________________
>Amps mailing list
>Amps at contesting.com
>http://lists.contesting.com/mailman/listinfo/amps