[Milsurplus] NESTOR: AN/PRC-77 with TSEC/KY-38 *CORRECTED PHOTO*

[Mike Morrow]

The photo shows the TSEC/KY-38 connected to the RT-841/PRC-77.

The TSEC/KY-28 is NOT shown.  That is the NESTOR crypto unit for AIRCRAFT applications.  Many KY-28s were installed on Vietnam-era Army helicopters for use with their AN/ARC-54 or AN/ARC-131 tactical FM radios.

Mike / KK5F
-----Original Message-----
From: George Sliney <gjsliney48 at gmail.com>
Sent: Nov 2, 2022 12:42 PM
To: <kk5f at arrl.net>
Cc: Rob Flory <farmer.rob.flory at gmail.com>, milsurplus <milsurplus at mailman.qth.net>
Subject: Re: [Milsurplus] NESTOR: AN/PRC-77 with TSEC/KY-38 *CORRECTED PHOTO*

Wow!  That Ky-28 unit looks as large and heavy as the KY-8 units I had aboard my ship.  What contributed to the size and I assume the weight of the KY-28?  I sure did not want to try and lug around a KY-8.  Luckily, all my issues with my KY-8's were from the key insertion device.  The RM's had a lot of difficulty in setting up the slides and inserting the device into the KY-8.  I normally would be in the crypto room "assisting" with the setups.

On Wed, Nov 2, 2022 at 10:18 AM Mike Morrow <kk5f at earthlink.net (mailto:kk5f at earthlink.net)> wrote:
CORRECTED MIRROR IMAGE PHOTO

Attached is a photo of the Vietnam-era man-pack AN/PRC-77 (top) with TSEC/KY-38 NESTOR voice encryption unit (bottom). Plus soldier and M14 rifle. :-)

State of the Art in 1968. Dainty ain't it?

Mike / KK5F

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