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: (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

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] 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

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: 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 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

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

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

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

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

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: 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

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

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

RS appear to have them at £21.72 each Almost certainly +VAT & carriage. Chris.

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

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

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

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