[Milsurplus] Another try for info on the T-96 jammer

[WA5CAB at cs.com]

Rick,

I have TM 11-512.  It's an operator's manual and given what I just read, 
there was no maintenance manual as if one of the transmitters failed the 
operational test, the instructions were to destroy it and file a form.  However, 
it does include a simple schematic and abbreviated parts list.

According to the TM, AN/CRT-2 is an MF/HF barrage jammer consisting of T-94 
through T-99/CRT-2.  Together they cover 950 to 7000 KC.  The transmitter 
is a vibrator connected to a step-up transformer driving a spark gap 
connected to the antenna.  There is a 0-23 hour delay timer so the stick of six 
transmitters could be planted up to a day ahead of an operation.  Operating time 
is given as 4 hours using 16 Battery BA-37 or 2-1/2 hours using 32 Battery 
BA-30 in 16 Adaptor FT-501, connected for 12 VDC.

The TM says that the T-96 covers 1950-2580 KC but I think it should be 1850 
instead of 1950, as the T-95 coverage is given as 1330-1850.  Output power 
is given as 4 to 1.5 watts, decreasing with frequency.

A cluster adaptor was furnished so that two transmitters could be hung from 
one 100 bomb station.

In a message dated 7/31/2009 2:53:07 PM Central Daylight Time, 
relarson52 at yahoo.com writes: 
> I took some photos of the T-96 with some links below to help everyone 
> figure out what I'm talking about.
> 
> This item is definitely dropped from a bomb rack like a piece of ordnance. 
> It is 7" in diameter and 42" long. There is a parachute in the tail that 
> deploys when the tail fin retarder pulls off the back and opens it up. When 
> the chute opens, the nose sleeve drops off the front of the device and pays 
> out the antenna wire.
> 
> http://photos.imageevent.com/ricklarson/scr194scr195/huge/PICT0926.JPG
> 
> http://photos.imageevent.com/ricklarson/scr194scr195/huge/PICT0927.JPG
> 
> http://photos.imageevent.com/ricklarson/scr194scr195/huge/PICT0928.JPG
> 
> http://photos.imageevent.com/ricklarson/scr194scr195/huge/PICT0929.JPG
> 
> http://photos.imageevent.com/ricklarson/scr194scr195/huge/PICT0930.JPG
> 
> http://photos.imageevent.com/ricklarson/scr194scr195/huge/PICT0931.JPG
> 
> http://photos.imageevent.com/ricklarson/scr194scr195/huge/PICT0932.JPG
> 
> http://photos.imageevent.com/ricklarson/scr194scr195/huge/PICT0934.JPG
> 
> http://photos.imageevent.com/ricklarson/scr194scr195/huge/PICT0935.JPG
> 
> While looking it over for photos (the first time in 20+ years), I noted 
> the identification decal on the underside of the body. It refers to it as a 
> transmitter T-96/CRT-2. With that additional bit of info, I checked Fred 
> Chesson's list where it was described as an expendable parachute-dropped 
> jammer operating on 2000-2500 KC. He also references TM 11-512, 1944 as a source 
> of information. Anyone have a copy of that manual?
> 
> I'm still interesting in knowing more about this piece and if anybody else 
> has one in their radio collection. How were they employed, assuming they 
> ever were? These used to be fairly common in surplus stores here in the 
> Portland, OR area when I was a kid, but haven't seen many elsewhere. Thanks!
> 
> Rick
> 

Robert & Susan Downs - Houston
wa5cab dot com (Web Store)
MVPA 9480