[TMC] PMO-2

[Ira Curtis]

Hi Larry,
Yes I do have the original manual, however, it doesn't say any thing about 
tracking.
It, to my understanding, deals only with small frequency corrections.
I believe the problem lies within the correcting capacitor, that doesn't 
track or isn't synchronized with the main tuning cap.
And if this is it, although I will finally find how to do it, but would 
rather shorten the procedure.
One more point,
Does anybody knows of a source to get the heating elements and both the 
mercury and the thermo couple thermostats
for the PMO's?
Same goes for the clear pilot lamps lens?
Any suggestions?
Ira
CE3AM,,,,,,,,,4X4SW

----- Original Message ----- 
From: <telegrapher at att.net>
To: "Ira Curtis" <kch at tie.cl>
Sent: Saturday, June 10, 2006 7:22 PM
Subject: Re: [TMC] PMO-2


> I've got an original PMO factory issued manual here.  do you have such a 
> thing or not?  It has a section in there for preventive maintenance which 
> also covers adjusting the 100 kc standard , the master oscillator and the 
> Power amplifier.  It also has a few other suggestions.
>
> Larry
> W0OGH
>
>
> Ira Curtis wrote:
>> In repairing a PMO-2 I  made it play very nice and stable.
>> The work done required opening of the osc housing, where I found many 
>> surprises.
>> It had been opened sometime in the past but never totally reassembled. As 
>> there are no instructions as to how to rebuild this thing, I made the 
>> best I could, and it does running, but I cannot get it to  track. Means 
>> if I adjust both the numerator and the oscillator to say 3.000Mhz, after 
>> few turns, the mechanical numerator doesn't track with the oscillator 
>> anymore and results in up to 140Kcs difference at both ends.Can anyone 
>> give me the complete procedure as to how to adjust tracking?or where to 
>> download factory instructions if they exist?
>> I must add that both C-304, and C-319 had to be replaced. any help out 
>> there?
>> Ira CE3AM......4X4SW
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