"Paul P" wrote in
message news
Gents,

I have acquired a Drake TR4 with power supply that track accurately on 80,
40, 20, 15 meters. The dial on the three 10 meter bands indicates about
30khz higher than actual. I have tried to adjust the touchy L2
accurately, looked at T1 for problems and swapped V1 tube. There are no
cracked ferrite cores. Other hams on the air have told me this is typical
of this TR-4 gear on 10 meters.

Is there a component or gimmick that would bring the 10m tracking back on?
Does having the 6JB8 PAs screen and plate B+ disconnected affect the 10m
band in this way (I would think not)?

What am I overlooking?

Thanks,
Paul.
Paul -

A frequency counter could quickly diagnose this issue. Have you checked the
crystals? The LMO may be working correctly.

gb