The R-45 AN/ARR-7 had that preset arrangement (remote and on the receiver), but the pre-sets were manually set on the rig. Maybe this had that function as part of the remote head?

Jim Falls K6FWT 

On May 5, 2022, at 14:56, Michael Hanz <[email protected]> wrote:

 It's no different than the original switching scheme, Hue, which is step tuned.  The intent of the C-37/ARR-2A "electric tuning control adapter", which is synchronized with the compatible C-35/ARR-2A channel selection switch, was to eliminate the problems of long runs of flex tuning cable between the receiver and the control box.  That allowed more flexibility for where they could install the receiver.  The motor drive adapter was cleverly made to be capable of installation on the original R-4A/ARR-2 receiver.  Attached is the installation diagram for the whole shebang.

-Mike  KC4TOS

On 5/5/2022 5:07 PM, Hubert Miller wrote:

On Ebay now, this motor tuned ARR-2 receiver. I have not seen one before. So how was this controlled; is it continuous

or step tuned?

-Hue Miller

 

https://www.ebay.com/itm/265677200648?mkevt=1&mkpid=0&emsid=e11021.m43.l1120&mkcid=7&ch=osgood&euid=efdb853c4ce44eeca2af149b9c758b10&bu=43186714112&ut=RU&osub=-1~1&crd=20220505013601&segname=11021&sojTags=ch%3Dch%2Cbu%3Dbu%2Cut%3Dut%2Cosub%3Dosub%2Ccrd%3Dcrd%2Csegname%3Dsegname%2Cchnl%3Dmkcid

 

WWII Military Radio R-4A/ARR-2 Homing/Navigation Receiver


<Motor drive ARR-2A.png>
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