[Milsurplus] The AN/ARC-65

[Edward J White]

They were also used in the C-97G and I think in the KC-97L in the late 60's 
early 70's.
Ed
WA3BZT
----- Original Message ----- 
From: "D C *Mac* Macdonald" <k2gkk at hotmail.com>
To: <bsugarberg at core.com>; <kk5f at arrl.net>; <Milsurplus at mailman.qth.net>
Sent: Saturday, May 13, 2006 9:03 PM
Subject: RE: [Milsurplus] The AN/ARC-65


> As the B-52 crewmember (EW) who had to
> change the frequency settings of that radio
> in the air, I only remember that it was a ROYAL
> PIA!!
>
> Mac - K2GKK/5
> Oklahoma City
> Crew E-55, Carswell AFB
>
>
>
> ----Original Message Follows----
> From: BSugarberg <bsugarberg at core.com>
> To: Mike Morrow <kk5f at arrl.net>, Milsurplus at mailman.qth.net
> Subject: [Milsurplus] The AN/ARC-65
> Date: Sat, 13 May 2006 20:21:26 -0400
>
> Hello,
>
> The ARC-65 is an interesting radio that you never
> seem to hear about.  Does any one operate one?
> I owned an ARC-65 briefly about 20 years ago.
> I'll tell you what I remember about it:
>
> The ARC-65 was intended to mount inside the bomb
> bay of a B-52 bomber.  Accordingly, the ARC-65 was
> enclosed in a large sealed drum.  The drum was
> pressurized with 5 pounds of "dry air" (nitrogen),
> and fitted with special heaters, so that the inside
> of the drum was at a constant temperature and
> pressure.
>
> The (remote) control box was mechanical digital.
> Frequencies could be set down to .1 kc.  The control
> box was 1/2 of a wheatstone bridge.  The other 1/2
> of the bridge was inside the drum, connected to a set
> of motors.  Entering a frequency on the control box
> unbalanced the bridge.  That turned on the motors in
> the drum, and they then proceeded to rebalance the
> bridge, thus auto-tuning the ARC-65 to the desired
> frequency.
>
> 73, Bruce Sugarberg WA8TNC
> ==================
> Mike Morrow wrote:
>
>>I wonder how RCA won the contract to convert the Collins RT-311/ARC-38
> > to the Collins/RCA RT-594/ARC-38A.
> >
> > RCA must have gained the necessary expertise when it came up with the
> > design converting the 145-pound barrel-shaped AM RT-128A/ARC-21 to the
> > USB RT-400/ARC-65.
>>
>>Mike / KK5F
>
>
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