[Johnson] Ranger I problem

Gary Schafer garyschafer at comcast.net
Mon Aug 21 19:18:20 EDT 2006


Shorted turns on 1/2 of the modulation transformer.

73
Gary  K4FMX

> -----Original Message-----
> From: johnson-bounces at mailman.qth.net [mailto:johnson-
> bounces at mailman.qth.net] On Behalf Of Jim Brannigan
> Sent: Monday, August 21, 2006 5:00 PM
> To: johnson at mailman.qth.net
> Subject: [Johnson] Ranger I problem
> 
> 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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