One thing I saw on an old Heath Kit Warier linear which
had been outfitted with an audio tuning device was a
quarter-inch stereo headphone jack on the rear of the chassis.
Somebody had run coax designed for balanced audio service from
the stereo jack to the two contacts of the meter on the front
pannel.

	This would be a good way to do the modification.

	Balanced-line audio coax has 3 conductors. There is the
shield plus two center wires instead of 1. One would want to
route it so that it is as far away from the high-power RF
circuitry as possible so one doesn't induce RFI in to the
tone oscillator or the meter, itself.

	It is likely that both sides of the meter are above
ground, hince the balanced coax.

	Of course two runs of regular coax would also work.

Martin McCormick WB5AGZ  Stillwater, OK 
Systems Engineer
OSU Information Technology Department Network Operations Group
Walt Sebastian writes:
>Hi Shaun,
>It seems to me, back in the olden days when I had a Kenwood TS520, I could 
>go about 50 to 60 KHz before I  tuned up.  I am sure other people tuned up 
>sooner than that.
>
>Walt
>WA4QXT
>New London CT
>[log in to unmask] 
>