THIS ARC-5 THING CAN GET OUT OF CONTR0L!



See:  PA3ESY

But, there are some good reasons for operating just one receiver.  E,g, R-24/ARC-5 with a simple loop antenna makes an excellent broadcast-band DX receiver.
BASIC LOCAL OPERATION OF ARC-5 RECEIVERS

View from outside rear of set



  • Connect +24 VDC to pin6
  • Connect -24 VDC t pin 1
  • Audio output is from pin 2
  • Audio return is pin 1




VIEW FROM FRONT OF SET
Remote Control Adapter MX-21 / ARC-5
a.k.a.
Switch panel Adapter  CBY-49107 (ARA)
FT-230-A (SCR-274)

Remote Control Adapter MX-21 / ARC-5 is normally
supplied with all communication receivers.  It is plugged into the front of the set via J-1.   Its sole function is to complete the low-voltage circuit and to cover up the opening that otherwise would exist in the front of the receiceiver.  In this case all control functions are made from remote control boxes via J-3 on the back of the set.
Local Control

This is the answer if you can find one.

C-24/ARC-5
a.k.a.
FT-260-A (SCR-274)



AS SEEN FROM BACK OF ADAPTOR
(IT'S UNSIDE DOWN)
Modifiy an MX-21/ARC-5