Geoff -

That's what had me confused. The RV-75 is the synthesized VFO, and has the greatly improved stability. The base TR-5 is the same PTO as the rest.

73, Garey - K4OAH
Glen Allen, VA

Drake 2-B, 4-B, C-Line&  TR-4/C Service Supplement CDs
<www.k4oah.com>


geoffrey mendelson wrote:

On Dec 8, 2009, at 5:29 PM, Garey Barrell wrote:

Carl -

I've been corrected on the '5 PTO. I wonder how the much improved stability of the '5 is accomplished.?

I'm sure it is, for the first hour or so, my TR-5 wanders from a "cold start". It's really noticable with the RV-75.

73,

Geoff.


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