[RTTY] FYI: AL-80B Amp arcing

[Jay]

Just a thought that may or may not be appropriate. But years back I had 
a couple of Henry Amp's and I used to have problems with the solder 
joints on the tank coils. Seems that there was not enough cooling.  
Tubes were fine but the tank circuit just heated up in contests.  A 
couple of muffin fans mounted above the chassis on the outside and 
pulling air through the tank circuit solved
the problem.  I just used 110 v fans and plugged them in only for the 
contests. Sat on top on the cover.



On 10/2/2009 7:00 PM, rick darwicki wrote:
> I traced the failure of my AL-80B amp on 10 meter RTTY to a bad solder joint on the 10 meter tank coil tap.
>   
> This also affected 15 meters in that about about 2-300 watts the SWR would shift up and down a bit.
>
> Rick, N6PE
> ===============================================================
> Remember, Some things are not worth doing well
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