[Milsurplus] Right angle tuning adaptors question

[Hubert Miller]

Where was this used ?  S. S. White 9107  right-angle tuning drive.

Also - i have an MC-136 right angle drive. I read that it's used with Bendix type equipment. Per the late John Forster:

"The larger size with the following components:

MC-124 Cable (ca. 18" long, other lengths may have different numbers)
MC-127 Spinner Knob
MC-136 Right Angle Drive (Corner Gear)

To my certain knowledge, the larger size is used on:

MN-26 Tuning and Loop
MN-31 Tuning
RA-10 Tuning and Loop
ARN-6 Tuning
ARN-7 Tuning
ASB-5 Tuning

BTW, the first 3 systems were certainly RCAF also. "

I am really only interested in keeping either of these if they fit the ARB or RU receivers. Otherwise, i offer them free. 
-Hue Miller