[Milsurplus] U.S. Made "V-1" Buzzbomb Transmitter

[COURYHOUSE at aol.com]

before they were deployed  winfield salisbury form harvard  rll (  terman's 
 group) went to study effect of   jamming on   them  . we have some of  his 
 notes and  comments...
 
 
In a message dated 1/6/2013 1:04:40 P.M. Mountain Standard Time,  
ersmar at verizon.net writes:

Gents:

Little Boy and Fat Man weapons  both used four APS-13 "Archie's" as 
altimeter triggers connected in  series-parallel.  Here's a good photo of 
the 
interior of L-11, the  weapon that detonated over Hiroshima:  
http://en.wikipedia.org/wiki/File:Atombombe_Little_Boy.jpg .  Click  on the 
photo and click on it again for an enlarged view of the interior  showing 
at 
least two APS-13's arranged around the gun  barrel.

For an interesting discussion see  http://cryptome.org/nuke-fuze.htm . 
I find it the cruelest of ironies that  Little Boy and Fatman were both 
triggered through the performance of four  Yagi-Uda antennas on each weapon.


73 de
Gene Smar   AD3F


----- Original Message ----- 
From: "J. Forster"  <jfor at quikus.com>
To: "Al Klase" <ark at ar88.net>
Cc:  <milsurplus at mailman.qth.net>
Sent: Sunday, January 06, 2013 2:32  PM
Subject: Re: [Milsurplus] U.S. Made "V-1" Buzzbomb  Transmitter


>I believe the relays were wired to trigger if any  two of the three reached
> the setpoint altitude.
>
>  -John
>
> =========
>
>
>
>> My  understanding is that there were four APS-#'s with output switch
>>  closures wired in series-parallel, so nothing bad could happen.  You  do
>> what you gotta do.
>>
>> There were a couple  of backup triggers, but I don't believe any were
>> remotely  controlled.
>>
>> Al
>>
>> On 1/6/2013  2:10 PM, J. Forster wrote:
>>> I don't think so. The A-bomb  triggers, at least one of them, used 3
>>> modifies APS-13 "tail  end charlie" RADARS in a voting arrangement.
>>>
>>>  FWIW,
>>>
>>> -John
>>>
>>>  ===========
>>>
>>>
>>>
>>>
>>>>  When I visited the Hiroshima Memorial museum in Japan, I saw  a
>>>> cylindrical transmitter ( about the size of a quart of  milk)that 
stated
>>>> was used to trigger "Fat Boy". It  appeared to be a vhf transmitter 
with
>>>> either a 4-65A or  3x-250 in the final. Does this bear any relation to
>>>> the  Buzzbomb one? Would be interesting to see a diagram of  it.
>>>>
>>>> Ralph
>>>>  VE3BBM
>>>>
>>>> --
>>>>  EMC=electromagnetic compatibility means your consumer equipment  
should
>>>> function in
>>>> the existing  enviroment in the manner for which it was designed.If you
>>>>  hear shortwave or broadcast signals while listening to a DVD- what  
does
>>>> that tell  you?
>>>>
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>>
>> --
>> Al  Klase - N3FRQ
>> Jersey City, NJ
>>  http://www.skywaves.ar88.net/
>>
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