[TenTec] Centaur tuning problems

Dr. Gerald N. Johnson geraldj at storm.weather.net
Sun Oct 19 22:29:50 EDT 2008


On Sun, 2008-10-19 at 17:56 -0400, Carter wrote:
> Ronald Feutz wrote:
> >
> >  Any suggestions as to where to look will be appreciated.  I am an
> >  appliance operator but can generally figure stuff out if I can get
> >  some good advice on where to start and what to look for.
> 
> Ron,
> I have a Centurion, not a Centaur, so I can't be too specific. I'm sure 
> others here will have some good suggestions, but let me offer the 
> following 'generic' comments:
> 
> 1) If you are not doing so already, tune up into a dummy load.
> 
> 2) Band switch of exciter and amp on the same band? (Don't ask me how I 
> know <grin>)

Add to that, input and output band switches in the amp on the same band.
Often there is a chain or belt between them that can have failed. Or a
shaft coupler can have come loose.
> 
> 3) Nothing obviously defective inside like burned/arced band switch, 
> blown capacitor(s),  messed up parasitic suppressors or plate cap 
> connections when you changed tubes, etc, etc.
> 
> 4) Defective coax jumper(s) from exciter to amp, amp to tuner or antenna 
> switch, etc.
> 
> 5) Finally and most important:  LETHAL VOLTAGE INSIDE. BE CAREFUL!!! Oh, 
> did I mention *BE CAREFUL*!!!
> 
> Good luck and hopefully some others will chime in...
> 
> 73,
> Carter  K8VT
> 
73, Jerry, K0CQ



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