[Johnson] Ranger I problem

[C E]

Sounds like a decoupling problem. I don't know how to
pin this down but check your bypass caps and
decoupling caps. I have had a disc ceramic fail in a
Valiant II. A good hint is the appearance of those
caps that like they have a fried/bubbly/burnt look.
FWIW. Cal. 

--- Jim Brannigan <jbrannig at optonline.net> wrote:

> More on my adventures with the Ranger.....
> 
> I isolated the "talking" to the HV choke, this
> happens only on AM, not CW.
> Connecting a scope to HV power supply capacitor I
> get lots of audio on the 
> HV line.
> The RF was disabled, so this is audio...
> 
> any ideas?
> 
> Thanks,
> Jim
> 
> 
> >
> > My Ranger was completely refurbed and has been
> working properly.
> >
> > I put it on the bench to reset the bias and keyer
> settings, while it was 
> > on
> > the bench I finished the PTT wiring (ala Phil
> Salas and WA1HLR).
> >
> >
> > While testing it, I noticed that one 6L6 metal
> modulator tube was running
> > considerably hotter than the other (laser
> thermometer)  Substituting glass
> > 6L6's showed a slight glow on the plates of the
> tube in the same position.
> >
> > Then, in AM,  the Ranger started to "talk" to me
> and I can't quite isolate
> > the source.
> >
> > Resistance and voltage checks are OK.  Before I
> start to take it all 
> > apart,
> > any ideas??????
> >
> > Tnx in advance,
> >
> > Jim
> 
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