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Subject: Re: Heads up!
Organization: Chariot Internet - http://www.chariot.net.au
Date: Wed, 13 Nov 2002 09:32:20 +1030
NNTP-Posting-Date: Wed, 13 Nov 2002 09:59:05 EST
The British Army was still using tubes into the early 80's at least.
there was a catalogue of CV number to manufacturers number, but I lost
mine in the move to Aus.
John Woodgate wrote:
> I read in sci.electronics.design that John Larkin THIStechPLEASEnology.com> wrote (in 4ax.com>) about 'Heads up!', on Mon, 11 Nov 2002:
> >I actually have a few schematics. All the ones I've seen have three
> >tubes: "reaction-grid" oscillator, audio amp, and trigger thyratron. I
> >could post schematics if there were overwhelming popular demand.
> That sounds like the version I heard of. the thyratron also suggests to
> me that specialist sub-miniature tube maker Hivac was involved in the
> British work. They already had a gas triode tube - XFG1, which was used
> in model radio-control receivers.
> >I'd love to get some of the tubes. *Many* millions were made, but I've
> >never seen any surplus for sale. NR3A, 2C27, 2E27, 2E29, 2D29.
> I've not heard of any of those, but some British services tubes with CV
> numbers were around 30 years ago.
> Regards, John Woodgate, OOO - Own Opinions Only. http://www.jmwa.demon.co.uk
> Interested in professional sound reinforcement and distribution? Then go to
> PLEASE do NOT copy news posts to me by E-MAIL!