It can, and does control three transmitters when desired. Page 50 in Volume 2 of AN 08-10-195, "Handbook of Maintenance Instructions for AN/ARC-5 Radio Equipment (VHF Components)" covers the operation and capabilities of this control box. Its greatest drawback was simply the unreliability of the push button switches, which deficiency it shared with the SCR-522 VHF set control box. Its replacement, the C-30-A/ARC-5, reverted to the simple rotary switches used for other functions in the other control boxes and the problems went away. Too bad they didn't have DeoxIT back then. 😁

- Mike KC4TOS

On 10/25/2021 8:36 PM, MARK DORNEY via ARC5 wrote:

I also have a C-30/ARC-5 Control Box and am interested. Can this control box be used to control 3 Transmitters?

Mark D.

WW2RDO

On Oct 25, 2021, at 1:53 PM, dennis via ARC5 <[email protected]> wrote:

i have the C-30/ARC-5 control unit push button type i know abcd are channel select, lower button one is for off/on, the lower nos # 2&3 what are they used for also can i use the control unit on a T-19 T22 TX if so is this control box wired the same as the C-29/arc-5 or different wiring any type of help tnx dennis ka9dzr