[ARC5] Hacked R-27/ARC-5

[mmab]

I got this hacked R-27 at the TRW Swap Meet this past weekend. It has a 
1:1 ratio worm drive assembly installed in place of the regular worm 
drive with its tuning shaft projecting through a new hole that is 7/16" 
above the hole for the regular tuning shaft. The dial and all of the 
gears for it have been removed and a 3/16" thick aluminum backer plate 
has been installed behind the panel to cover up the holes for the dial 
shaft and regular tuning shaft. Nine new holes have been drilled in the 
front panel to accomplish these mods.

My question is, were did this 1:1 gear drive come from?  It fits the 
mounting studs on the R-27 tuning capacitor perfectly, like it was made 
for the job.  A half turn on its shaft smoothly turns the tuning cap 
through its full range.  I've seen bevel gears to accomplish a 90-degree 
change in shaft direction before but never 1:1 worm gears.

Mike, W6MAB






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