[Milsurplus] 24 Volt BC-312's & KC-97L

[Mike Morrow]

Ray wrote:

>Their may be the A ARC-65 installed, did see the big drum that you speak
>of between navigators and flight engineers station taking up much space,

It's hard to mistake that 142 lbm, 18 inch diameter drum...no other aircraft radio set is physically as distinctive as the RT-128A/ARC-21 or RT-400/ARC-65.  If it's a -65, then it's good for about 400 watts PEP, 2 to 24 mc in 0.5 kc intervals.

>maybe the transponder was a APX-25, just looking at it was thinking it
>was a six from its appearance.

I thought the same thing when I first saw one at the avionics shop at a SAC base in 1970.  Turned out it had been upgraded to the APX-25.  The APX-25 was made from modified APX-6 units, with an external code keyer unit.  The RT units look the same except for an amphenol on the -25 panel that isn't on the -6 panel.

73,
Mike / KK5F