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Does any one know what this is from?
Andy (G8JAC) wrote: Excellent, so mine is complete. :-) Many thanks. (I had a look on the internet and one that sold recently had photographs - the lid was present but with no contents, at least it co
Andy (G8JAC) wrote: Excellent, so mine is complete. :-) Many thanks. (I had a look on the internet and one that sold recently had photographs - the lid was present but with no contents, at least it co
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By
Chris_Suslowicz
· #54584
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Does any one know what this is from?
Andy (G8JAC) wrote: (Hastily checks CT211) Hmmm... should it have one or two? Mine only has one of them, a Pattern 4 double ended lead, and a Pattern 4 to crocodile clips in the lid. (The other CT211
Andy (G8JAC) wrote: (Hastily checks CT211) Hmmm... should it have one or two? Mine only has one of them, a Pattern 4 double ended lead, and a Pattern 4 to crocodile clips in the lid. (The other CT211
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Chris_Suslowicz
· #54580
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Does any one know what this is from?
Re: [wireless-set-no19] Does any one know what this is fro Keith was up late and posted: Section ZD is test equipment, so probably a signal generator of some sort. Chris (G8KGS) (Also a night owl^Wgno
Re: [wireless-set-no19] Does any one know what this is fro Keith was up late and posted: Section ZD is test equipment, so probably a signal generator of some sort. Chris (G8KGS) (Also a night owl^Wgno
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By
Chris_Suslowicz
· #54573
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Critical Voltage for Wireless Sets
Re: [wireless-set-no19] Critical Voltage for Wireless Sets Chris Jones (G8GFB) wrote: I was thinking 10.8 volts as a 'hard limit', but with a war on, anything goes - hence the comments in the REME bat
Re: [wireless-set-no19] Critical Voltage for Wireless Sets Chris Jones (G8GFB) wrote: I was thinking 10.8 volts as a 'hard limit', but with a war on, anything goes - hence the comments in the REME bat
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Chris_Suslowicz
· #54549
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Hello and thanks for letting me join
Kevin (GW0PUH) wrote: Yes, various modes (can't remember the letters) but CW, DSB, DSB (reduced carrier), SSB, ISB and FSK. Various members of the group have owned them, operated them (amateur or prof
Kevin (GW0PUH) wrote: Yes, various modes (can't remember the letters) but CW, DSB, DSB (reduced carrier), SSB, ISB and FSK. Various members of the group have owned them, operated them (amateur or prof
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By
Chris_Suslowicz
· #54487
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Hello and thanks for letting me join
Kevin (GW0PUH) wrote: Truetime (now part of Symmetricom) make time servers, timecode generators, and suchlike. I have a very old (and faulty) off-air one that would sync to MSF (fine when we were in B
Kevin (GW0PUH) wrote: Truetime (now part of Symmetricom) make time servers, timecode generators, and suchlike. I have a very old (and faulty) off-air one that would sync to MSF (fine when we were in B
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By
Chris_Suslowicz
· #54486
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Hello and thanks for letting me join
Kevin wrote: Keith (group owner) makes some very nice solid state replacements for the electromagnetic vibrator. QY3-125 valves were used in the D11, I wonder if you have the PA drawer from one of tho
Kevin wrote: Keith (group owner) makes some very nice solid state replacements for the electromagnetic vibrator. QY3-125 valves were used in the D11, I wonder if you have the PA drawer from one of tho
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By
Chris_Suslowicz
· #54482
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Hello and thanks for letting me join
Re: [wireless-set-no19] Hello and thanks for letting me jo Chris Jones (G8GFB) wrote: Since one of the other names in the project was Neo, I suspect it was more likely to be a fan of "The Matrix". Chr
Re: [wireless-set-no19] Hello and thanks for letting me jo Chris Jones (G8GFB) wrote: Since one of the other names in the project was Neo, I suspect it was more likely to be a fan of "The Matrix". Chr
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By
Chris_Suslowicz
· #54466
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"Inside Enigma"
Michael (G8MOB) wrote: Ditto. Maybe someone asked that well-known paragon of truth Alexander Boris De Pfeffel Johnson? Group Captain F.W.Winterbotham - The Ultra Secret - published in 1974. :-)> Chris
Michael (G8MOB) wrote: Ditto. Maybe someone asked that well-known paragon of truth Alexander Boris De Pfeffel Johnson? Group Captain F.W.Winterbotham - The Ultra Secret - published in 1974. :-)> Chris
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Chris_Suslowicz
· #54413
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WS31
Mike Buckley wrote: These were definitely 'official' issue, but may have been supplied by the local TA unit. I've seen the modified ones with just 'For CCF use only' (or ACF, of course) markings. We h
Mike Buckley wrote: These were definitely 'official' issue, but may have been supplied by the local TA unit. I've seen the modified ones with just 'For CCF use only' (or ACF, of course) markings. We h
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By
Chris_Suslowicz
· #54386
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WS19 Canadian mkII T3a construction details case
Carvel (ZR6APX) wrote: No, and machining rubber would be extremely difficult, I think. If I have to I'll make the central hole large enough, reassemble the transfer wheel, and see if I can true the ru
Carvel (ZR6APX) wrote: No, and machining rubber would be extremely difficult, I think. If I have to I'll make the central hole large enough, reassemble the transfer wheel, and see if I can true the ru
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By
Chris_Suslowicz
· #54384
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WS19 Canadian mkII T3a construction details case
Jim (G4XWD) wrote: I bought a rather 'tired' KoLectric production coil winder last year and am slowly rebuilding it. The main problem is the transfer wheel that provides the variable drive between spi
Jim (G4XWD) wrote: I bought a rather 'tired' KoLectric production coil winder last year and am slowly rebuilding it. The main problem is the transfer wheel that provides the variable drive between spi
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By
Chris_Suslowicz
· #54374
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WS19 Canadian mkII T3a construction details case
Jim (G4XWD) wrote: From the EMER: T3A. "A" microphone transformer. Secondary:- 14,000 turns of 47 s.w.g.enamelled copper wire. Screen:- 1 layer of 47 s.w.g. enamelled copper wire. Primary: 140 turns o
Jim (G4XWD) wrote: From the EMER: T3A. "A" microphone transformer. Secondary:- 14,000 turns of 47 s.w.g.enamelled copper wire. Screen:- 1 layer of 47 s.w.g. enamelled copper wire. Primary: 140 turns o
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By
Chris_Suslowicz
· #54371
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19 Set Mk3 update
Mike (G3ZCC) wrote: If you request document 492 from the archive, that has the full winding details for all the inductors in the set. (Or go for 508 which I think is the full set.) The PA tuning will
Mike (G3ZCC) wrote: If you request document 492 from the archive, that has the full winding details for all the inductors in the set. (Or go for 508 which I think is the full set.) The PA tuning will
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By
Chris_Suslowicz
· #54341
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19 Set Mk3 update
Re: [wireless-set-no19] 19 Set Mk3 update Carvel (ZR6APX) wrote: Should be fine - need to nobble the BFO on receive if using the CW position for more carrier power. If so, pin 1 on the power connector
Re: [wireless-set-no19] 19 Set Mk3 update Carvel (ZR6APX) wrote: Should be fine - need to nobble the BFO on receive if using the CW position for more carrier power. If so, pin 1 on the power connector
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By
Chris_Suslowicz
· #54337
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Racal MA-984?
RS appear to have them at £21.72 each Almost certainly +VAT & carriage. Chris.
RS appear to have them at £21.72 each Almost certainly +VAT & carriage. Chris.
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By
Chris_Suslowicz
· #54304
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Racal MA-984?
Keith wrote: FC Lane? it's a Pattern 105 or LMH series connector, the smallest size available (only available in 2, 3 or 4 contact versions). You need the 08-02P but I can't get my head around the cat
Keith wrote: FC Lane? it's a Pattern 105 or LMH series connector, the smallest size available (only available in 2, 3 or 4 contact versions). You need the 08-02P but I can't get my head around the cat
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By
Chris_Suslowicz
· #54303
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813 Heater Supply
Re: [wireless-set-no19] 813 Heater Supply Allan (G3PIY) wrote: Tut tut... :-)> I think it was to keep the heater current out of the metering and/or allow any DC bias to be evenly distributed. Yes, bec
Re: [wireless-set-no19] 813 Heater Supply Allan (G3PIY) wrote: Tut tut... :-)> I think it was to keep the heater current out of the metering and/or allow any DC bias to be evenly distributed. Yes, bec
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By
Chris_Suslowicz
· #54261
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WTB Larkspur handset
I have a bad feeling about this. A lot of Chris Maxwell's kit that is appearing on eBay has been modified (sometimes heavily) to suit its owner, so may well no longer match the NATO stock number that
I have a bad feeling about this. A lot of Chris Maxwell's kit that is appearing on eBay has been modified (sometimes heavily) to suit its owner, so may well no longer match the NATO stock number that
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By
Chris_Suslowicz
· #54259
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Help source UK Valve/Tube supplier?
Aquadag (colloidal graphite in water) is another traditional method if going down the electroplating route. (Conductive graphite layer, electroplate copper onto that, then finish with nickel or chrome
Aquadag (colloidal graphite in water) is another traditional method if going down the electroplating route. (Conductive graphite layer, electroplate copper onto that, then finish with nickel or chrome
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By
Chris_Suslowicz
· #54231
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