[TenTec] Omni C help

Mike Hyder -N4NT- Mike_N4NT at embarqmail.com
Fri Jan 2 02:25:19 EST 2009


Hi, Jerry

The common terminology for the symptom of a PTO with dry, gummy grease is 
"warble."  Signals warble in frequency instead of being stable and as Phil 
says, there is difficulty in making fine frequency adjustments.

I've needed the rebuild kit from Ten-Tec only once, in a 544 Triton PTO. 
The front bearing race appeared to have a groove worn in it.  When I think 
back on it, I wonder if it wasn't machined like that when new and the design 
was changed to reduce the fabrication expense.  Oh, well.

PTO's changed frequency slightly due to "hand capacitance" when the tuning 
knob is touched.  Later models had two music wire wipers mounted under the 
screws at the front of the PTO.  The wipers rubbed on the shaft.  It's an 
easy retrofit.

Happy New Year, everybody !
Mike N4NT

----- Original Message ----- 
From: "Jerry Kitterman" <jerry.kitterman53 at yahoo.com>
To: <tentec at contesting.com>
Sent: Thursday, January 01, 2009 4:38 PM
Subject: [TenTec] Omni C help


Gentlemen,
I have a Omni C and recently I have been getting drifty reports on cw which 
is all I use it for. Also, I hear the same drifty sigs on my end too on all 
cw signals. When I tap the top or face of the rig nothing happens but if I 
tap the tuning knob it shifts in freq. I have been told I need a pto 
rebuild. Dont want to send it to TT because I don't want to put much money 
in it but if the rebuild is all I need I will do that myself. Any ideas? TIA 
and happy new year to all.




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