[R-390] Slowing main Tuning for SSB
Dave Faria
Dave_Faria at hotmail.com
Tue Dec 19 14:53:43 EST 2006
I have what I believe is a SSB tuning assembly for the 390. What it entails
is an extension shaft with a gear was mechanically coupled by a sleeve to
the main tuning shaft. Over the additional shaft there was a small machined
box that was mounted I think by 1 machine screw??? to the outside of the
front panel. A small knob came out the bottom of the new attached box. The
small knob was attached to a worm gear which engaged the gear on the new
extended shaft. Normal tuning could still be done by disengaging the worm
gear by snapping the small knob to its second position. Fine tuning using
the worm gear was like snapping a light switch into the engaged position.
The old tuning knob just mounted on the end of the extended shaft. I have
one of the assemblies. Contact me if you r interested after Dec 28th and
I'll try to find it for pictures. It's Mil. Green - it looks great with
gray.
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