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

[Mike Hanz]

In addition to Robert's fine summary, there is a fair amount on the 
"Chicks" expendable parachute jammer deployment intent and efficacy in 
the Secret 1946 Division 15 Summary Technical Report.  I'm happy to scan 
it for you but I'm in the process of trying to discover what kind of 
scanner SCSI card I need for the new computer, so it won't be immediate.

Best 73,
Mike

WA5CAB at cs.com wrote:
> 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
> ______________________________________________________________
> Milsurplus mailing list
> Home: http://mailman.qth.net/mailman/listinfo/milsurplus
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Milsurplus at mailman.qth.net
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>
>
>