Spy set or what. - UK Vintage Radio Repair and Restoration Discussion Forum

peter.sables · 20th Apr 2016, 10:15 am

A friend in Germany has sent me photos of this. He says he has one but he does not know what it is!. No name to it but I'm sure it is a spy set. Anyway I'm intending to build one. I see that it fits into the vacant valve base of a domestic wireless. I've lost most of the information in the translation. ! What would it replace. I'm working on an octal....

Pete G4MRU

Jon_G4MDC · 20th Apr 2016, 10:18 am

Power output tube most likely. 6V6 or similar?

HamishBoxer · 20th Apr 2016, 10:34 am

For possible information on this try Ben Nock at the military museum?

Station X · 20th Apr 2016, 10:36 am

This is a German "Adapter Transmitter". There were several variants, but I haven't seen one in an 'L' shaped case before.

Valve used could be AL4, EL2, EL12, 6L6 or 6V6.

More info including a circuit in WFTW Volume 4.

David G4EBT · 20th Apr 2016, 10:51 am

If it is indeed a German 'spy set' I think it post-dates WW2. It has a 1950s look about it and used an HC6-U crystal holder. I'm not sure when that crystal package was introduced but I think it was post-war, though I stand to be corrected. (The pile wound chokes have an Eddystone look about them!).

Radio Wrangler · 20th Apr 2016, 11:08 am

Agree with HC6 crystal, and the length of the valve (and it's little flange) suggests 6L6

David

peter.sables · 20th Apr 2016, 12:03 pm

Hi

He says Croatian !. it has a 6L6 valve. Yes I am thinking it plugs into a final output of the wireless. So thinking 6V6. No name or information.

If I get any more information, I'll post it here

Thank you
pete G4MRU

Station X · 20th Apr 2016, 12:18 pm

That's odd. From 1918 to 1991 Croatia was part of Yugoslavia. Perhaps this is of recent origin?

I've seen variants where the adapter plugged straight into the output valve socket of a broadcast radio and used the original output valve. The version pictured uses a plug on the end of a lead.

ex seismic · 20th Apr 2016, 12:21 pm

In the colour picture the tuning knob looks awfully like the fine tuning knob from a 19 Set.

gmb

peter.sables · 20th Apr 2016, 5:47 pm

Hi.

First of all the colour photo is of the one I'm building. That's why I asked for the plug as I cannot see it in the photo. I now have a little more.

Pete.

peter.sables · 24th Apr 2016, 10:49 pm

hi.
Well its finished. It works very well. Really should now be moved the home brew. The power out put is very good.

Pete G4MRU

20th Apr 2016, 10:15 am	#1
peter.sables Rest in Peace Join Date: Dec 2007 Location: Doncaster, South Yorkshire, UK. Posts: 385	Spy set or what. A friend in Germany has sent me photos of this. He says he has one but he does not know what it is!. No name to it but I'm sure it is a spy set. Anyway I'm intending to build one. I see that it fits into the vacant valve base of a domestic wireless. I've lost most of the information in the translation. ! What would it replace. I'm working on an octal.... Pete G4MRU Attached Thumbnails

20th Apr 2016, 10:18 am	#2
Jon_G4MDC Nonode Join Date: Nov 2015 Location: Welwyn Garden City, Hertfordshire, UK. Posts: 2,015	Re: Spy set or what. Power output tube most likely. 6V6 or similar?

20th Apr 2016, 10:34 am	#3
HamishBoxer Dekatron Join Date: Aug 2007 Location: W.Butterwick, near Doncaster UK. Posts: 8,932	Re: Spy set or what. For possible information on this try Ben Nock at the military museum? __________________ G8JET BVWS Archivist and Member V.M.A.R.S

20th Apr 2016, 10:36 am	#4
Station X Moderator Join Date: Jan 2003 Location: Ipswich, Suffolk, IP4, UK. Posts: 21,288	Re: Spy set or what. This is a German "Adapter Transmitter". There were several variants, but I haven't seen one in an 'L' shaped case before. Valve used could be AL4, EL2, EL12, 6L6 or 6V6. More info including a circuit in WFTW Volume 4. __________________ Graham. Forum Moderator Reach for your meter before you reach for your soldering iron.

20th Apr 2016, 10:51 am	#5
David G4EBT Dekatron Join Date: Feb 2003 Location: Cottingham, East Yorkshire, UK. Posts: 5,761	Re: Spy set or what. If it is indeed a German 'spy set' I think it post-dates WW2. It has a 1950s look about it and used an HC6-U crystal holder. I'm not sure when that crystal package was introduced but I think it was post-war, though I stand to be corrected. (The pile wound chokes have an Eddystone look about them!). __________________ David. BVWS Member. G-QRP Club member 1339.

20th Apr 2016, 11:08 am	#6
Radio Wrangler Moderator Join Date: Mar 2012 Location: Fife, Scotland, UK. Posts: 22,876	Re: Spy set or what. Agree with HC6 crystal, and the length of the valve (and it's little flange) suggests 6L6 David __________________ Can't afford the volcanic island yet, but the plans for my monorail and the goons' uniforms are done

20th Apr 2016, 12:03 pm	#7
peter.sables Rest in Peace Join Date: Dec 2007 Location: Doncaster, South Yorkshire, UK. Posts: 385	Re: Spy set or what. Hi He says Croatian !. it has a 6L6 valve. Yes I am thinking it plugs into a final output of the wireless. So thinking 6V6. No name or information. If I get any more information, I'll post it here Thank you pete G4MRU

20th Apr 2016, 12:18 pm	#8
Station X Moderator Join Date: Jan 2003 Location: Ipswich, Suffolk, IP4, UK. Posts: 21,288	Re: Spy set or what. That's odd. From 1918 to 1991 Croatia was part of Yugoslavia. Perhaps this is of recent origin? I've seen variants where the adapter plugged straight into the output valve socket of a broadcast radio and used the original output valve. The version pictured uses a plug on the end of a lead. __________________ Graham. Forum Moderator Reach for your meter before you reach for your soldering iron.

20th Apr 2016, 12:21 pm	#9
ex seismic Heptode Join Date: Sep 2009 Location: Tonbridge, Kent, UK. Posts: 686	Re: Spy set or what. In the colour picture the tuning knob looks awfully like the fine tuning knob from a 19 Set. gmb

20th Apr 2016, 5:47 pm	#10
peter.sables Rest in Peace Join Date: Dec 2007 Location: Doncaster, South Yorkshire, UK. Posts: 385	Re: Spy set or what. Hi. First of all the colour photo is of the one I'm building. That's why I asked for the plug as I cannot see it in the photo. I now have a little more. Pete. Attached Thumbnails

24th Apr 2016, 10:49 pm	#11
peter.sables Rest in Peace Join Date: Dec 2007 Location: Doncaster, South Yorkshire, UK. Posts: 385	Re: Spy set or what. hi. Well its finished. It works very well. Really should now be moved the home brew. The power out put is very good. Pete G4MRU Attached Thumbnails