Someone asked me years ago if i had the RU receiver tuning dial with instead of 0 - 100, had the reverse, 100 to 0. I found 3 today, apparently NOS. I believe these may be when two receivers are linked by a flex tuning shaft and tuning is by the knob on one receiver ? The reversed scale goes on the subsidiary receiver, or on the coffee grinder ? which i do not have. 

$10 each, mailed. 

I MAY have RUGF metering box, ant switch relays, phantom antenna, the most common connectors, junction boxes. Ask.

-Hue Miller