Dale -
If you look down from the top at the "gearbox" at the front of the PTO,
from the front of the radio, you'll see a nylon gear on the left side.
The hole in the front of the gearbox is oblong, allowing you to push the
front end of this gear's shaft to the left, disengaging the dial. There
is a spring that pulls this shaft back to re-engage the gear and dial.
So push the front end of that shaft to the left, and the dial becomes
free to rotate to wherever you need it to be! This will get you within
one gear tooth's of absolute center, and if this isn't good enough for
you, it's possible to shift the dial on the shaft by holding the dial
and turning the knob. After 50 years they can be a little tough to
"slip", but it just depends upon how picky you are! :-)
73, Garey - K4OAH
Glen Allen, VA
Drake 2-B, 4-B, C-Line& TR-4/C Service Supplement CDs
<www.k4oah.com>
[email protected] wrote:
Have the tr-3 up and running without a glitch. fantastic rig
,considering its age. anyway here is my problem. I turned on the
calibrator and ,set the dial to 14.00 had to drop the dial to 13.97 to
center tune the calb. Thinking that the internal calb. might be off,I
borrowed a HP lab generator ,just calibrated, checked things again and
found the same thing using the HP. I read thru the manual,nothing
about adjusting the main dial, and also looked for a service
manual.for the TR-3 ,found nothing.
So how do I loosen the plastic dial and move it a head, the 3 to 4
kc I need to? I didn't want to just tear into the dial assembly and
damage something.
please , a little guideance would sure help.
thanks
dale wt4t
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