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@yahoo.com>
To: <tentec@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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