[TenTec] Hercules II problem

[Clark Savage Turner]

On Jul 27, 2006, at 1:14 PM, JohnCrux wrote:
>
> me. The Herc trips out ("fault") at around 150 watts out on 10m and at 
> around
> 250 watts out on 12m. Switch off and back on, and all other bands work 
> as
> before. The SWR  remains as before on all meters ( Herc, ATU and 
> external
> SWR/power bridge. It is 1:1 or very close.
>
> But it does not always trip. ......
...........
> Anyone seen this problem (including my friends at TT service, please 
> !) and is
> there a solution ? If only I could pop the covers off the relays to 
> check the
> contacts .....   Surely someone has seen this ????

I've never seen Ten Tec service answer anyone on this reflector, John.  
Give them a phone call and they'll have some suggestions though.

I've had similar problems with my Hercules II, odd tripping of the amp, 
inexplicable and intermittent.  I talked to Ten Tec service and they 
told me about some wiring going around a relay where some stray RF is 
occasionally found :-)  I "moved" the wiring around a bit and the 
problem disappeared.  I do not recall exactly the relay, I will go back 
and consult my notes to see, but I recall a few wires going right next 
to a relay on a board, I bent them and moved them into a very different 
position.  I also sprayed a tiny bit of DeOxit around on the connectors 
while I was in there.  It all worked fine after that.

WA3JPG
Clark Savage Turner, J.D., Ph.D.
Professor of Computer Science
Cal Poly State University
San Luis Obispo, CA. 93407