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Homebrew Equipment A place to show, design and discuss the weird and wonderful electronic creations from the hands of individual members. |
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5th Oct 2006, 10:55 am | #1 |
Pentode
Join Date: Jun 2006
Location: Malaga, Spain.
Posts: 235
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Re: The Paraset
Split from the Paraset Thread.
__________________ Graham. Forum Moderator. Keep the soldering iron hot. ------------------- I saw another spy type Tx/Rx when I was in college (Colchester) about 1967. This was in the form of a small hip flask. It was on display in one of the labs until it was stolen. I don't know if it was ever found or returned. Cheers, Boiss Last edited by Station X; 5th Oct 2006 at 11:27 am. |
5th Oct 2006, 11:45 am | #2 |
Moderator
Join Date: Jan 2003
Location: Ipswich, Suffolk, IP4, UK.
Posts: 21,192
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Re: Spy Radios.
I didn't nick it honest.
Sounds like a Type 31/1 Receiver and/or a Type 51/1 Transmitter to me. I'll try to post some pictures later.
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Graham. Forum Moderator Reach for your meter before you reach for your soldering iron. |
6th Oct 2006, 7:59 pm | #3 |
Moderator
Join Date: Jan 2003
Location: Ipswich, Suffolk, IP4, UK.
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Re: Spy Radios.
Here are some drawings of the Type 51/1 "Hip Flask" transmitter. The associated receiver type 31/1 was similarly shaped.
I've just about given up collecting spysets now, as current prices are more than I'm prepared to pay. Apart from that I have several awaiting repair/restoration. I'd better get them finished before morse reaches the end of the road. The following books have useful information on spysets including circuits etc:- Wireless For The Warrior Volume 4 Clandestine Radio is available from this website:- http://home.wxs.nl/~meuls003/progress4.html Secret Warfare by Pierre Lorain. ISBN 0-85613-586-0. I think this is out of print, but may be available from your local library or secondhand
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Graham. Forum Moderator Reach for your meter before you reach for your soldering iron. |
6th Oct 2006, 10:49 pm | #4 |
Heptode
Join Date: Jun 2004
Location: Ilkley, West Yorkshire, UK.
Posts: 656
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Re: Spy Radios.
You've probably come across these pictures before but here they are for those that haven't. I've had them quite a while but unfortunately can't recall where they came from.
Great bits of kit though. Do you have a spy set like this Graham? |
7th Oct 2006, 8:38 am | #5 |
Moderator
Join Date: Jan 2003
Location: Ipswich, Suffolk, IP4, UK.
Posts: 21,192
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Re: Spy Radios.
The water bottle radio design comes from this site:-
http://www.webex.net/~skywaves/home.htm I don't have one in my collection, as I doubt if any originals survived. They would have been constructed in P.O.W camps rather than in a factory. I do have a leaking water bottle which is ripe for conversion though. I would have expected a water bottle radio to have a divider across it so that it could actually contain some water. A heavy water bottle which contained no water would have been very suspicious. To my mind a "spy" radio should both transmit and receive, so I would classify the water bottle radio as a covert receiver. Interesting that it apparently worked with 12 volts of HT.
__________________
Graham. Forum Moderator Reach for your meter before you reach for your soldering iron. |
7th Oct 2006, 6:13 pm | #6 |
Pentode
Join Date: Jun 2006
Location: Malaga, Spain.
Posts: 235
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Re: Spy Radios.
Graham,
If I remember correctly the spy radio really had the shape of a hipflask ie it was curved, I've no idea if it was a Tx,Rx or both. The Lecturer who was in charge of it was a Mr Howe.aka. "Dipole". At the time I made a 1" green (CV320?) TV in a 38 Set case using all EF91s apart from the tuner. Happy times! Mike. |