[ARC5] Questions that need answers

[Gordon White]

Hate to contradict anyone, but I don't believe there was ever an 
ORIGINAL  receiver front panel adapter with a phone jack. No need, since 
the racks have phone jacks. The FT-260 has an RF gain pot. and a rotary 
switch. The FT-230 is a blank "adapter" that completes a B+ circuit. 
There are  "adapters"  of various nomenclature.
There are two adapters, the MX-20 and -21 in the AN/ARC-5 series that 
have multi-contact receptacles (old style and new) to bring out B+ and 
audio for navigation units like the loop, the ZA, etc.

There are adapters with RAT, RAV, ARA, SCR-274-N and AN/ARC-5 nomenclature

- Gordon White