Tom,
Do you have idling current when you key the amp? It should be about 180-200mA
when in SSB or about 90-100mA when in CW mode.
Don
On Thursday 03 January 2008 09:10:35 pm TNeill1648@aol.com wrote:
> We recently had a very severe thunder storm with tremendous lightning
> strikes occurring a few miles from my QTH. I did not suffer a direct hit
> but the sky was full of electricity. Unfortunately, this amp is used at a
> station I have in one of my horse barns and I was unable to get to it to
> disconnect the AC and the antenna. (The antenna still works fine).
>
> After the storm passed my TL-922A amplifier ceased to work. Here is what I
> have observed with the amp after the storm:
>
> -No blown fuses.
> -HV is normal.
> -Idle plate current is normal.
> -No burned smell anywhere.
> -All switches and controls seem to be normal.
> -Change over relay appears to function normal.
>
> When I close the changeover relay and apply drive nothing happens. The
> exciter is working properly.
>
> I have not removed any panels to investigate the trouble but my problem
> appears to be in the input circuit since everything else seems to be OK.
> This weekend I am going to remove the panels and begin troubleshooting the
> problem. I just wondered if anyone familiar with this amplifier might have
> a suggestion as to where to start or if anyone else has had this problem.
> In 20 years of use, this is the first problem I have ever had with the
> TL-922A.
>
> Thanks you for any suggestions or recommendations.
>
> HNY in 08.
>
> Tom Neill
> K4XG
>
>
>
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