Re: valve cooling?

From	JMB99 <mb@nospam.net>
Newsgroups	uk.tech.broadcast
Subject	Re: valve cooling?
Date	2026-07-01 13:07 +0100
Organization	A noiseless patient Spider
Message-ID	<1122vue$1rdvk$1@dont-email.me> (permalink)
References	(6 earlier) <111u5kv$f68g$1@dont-email.me> <1rxie4q.r90lft1thaspvN%liz@poppyrecords.invalid.invalid> <111vuln$lp68$2@dont-email.me> <1rxii2z.102tmek122gn1pN%liz@poppyrecords.invalid.invalid> <1120vvv$16vs8$2@dont-email.me>

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On 30/06/2026 18:56, J. P. Gilliver wrote:
> Ah. Reminds me (and slightly back on-topic!) of the lengthy discussion
> we had here a few years ago, as to why OB control vans are referred to
> as "scanner"; the_consensus_ was that it/was/ derived from Baird's OB
> vehicle that covered the Derby (and thus contained a Baird-system mirror
> scanner), though other ideas (such as it containing the central sync.
> generator for all the outside cameras) remained supported by factions.

Earliest use of the term thT can find.

Daily Mirror - Tuesday 19 January 1937

MYSTERY VANS TO TELEVISE THE CORONATION
A SPECIAL CORRESPONDENT
THREE grey-green plain vans are on their way to the B. B. C. — a vital 
but "hush-hush" link in the B. B. C.'s Coronation broadcasts of television.
Yesterday I was able to inspect the layouts of these mysterious vans.
The first has a little window at the side through which the nose of a 
television scanner peeps. This van will be driven along the route to 
vantage points where the B. B. C. can televise the Coronation procession.
Following it will be a second van containing apparatus costing more than 
£4,000. There is a special ultra-short-wave transmitter, working below 7 
metres, which will broadcast the television from the route to the B. B. C.
Signals will be picked up by several receivers around London — one of 
them probably on Broadcasting House itself — and re-broadcast from the 
television station at Alexandra Palace.
The third van contains the other B. B. C. secret apparatus. If the 
electric power mains break down it will not stop the broadcast, for the 
B. B. C. " makes its own juice."
Post Office engineers are laying down special cables all over London, so 
that travelling B. B. C. commentators can plug in their microphones.
"Lobby"— Mr. de Lotbiniere. the Outside Broadcast Director—is still 
giving tests to special commentators who will describe on the air the 
progress of the ceremony and the procession.

Thread

valve cooling? "J. P. Gilliver" <G6JPG@255soft.uk> - 2026-06-28 20:51 +0100
  Re: valve cooling? Andy Burns <usenet@andyburns.uk> - 2026-06-28 20:55 +0100
    Re: valve cooling? liz@poppyrecords.invalid.invalid (Liz Tuddenham) - 2026-06-28 22:59 +0100
      Re: valve cooling? "J. P. Gilliver" <G6JPG@255soft.uk> - 2026-06-29 04:39 +0100
    Re: valve cooling? snipeco.2@gmail.com (Sn!pe) - 2026-06-28 23:01 +0100
      Re: valve cooling? Roderick Stewart <rjfs@escapetime.myzen.co.uk> - 2026-06-29 11:04 +0100
        Re: valve cooling? Charles Hope <clh@candehope.me.uk> - 2026-06-29 10:30 +0000
          Re: valve cooling? JMB99 <mb@nospam.net> - 2026-06-29 14:48 +0100
            Re: valve cooling? "J. P. Gilliver" <G6JPG@255soft.uk> - 2026-06-29 17:14 +0100
              Re: valve cooling? liz@poppyrecords.invalid.invalid (Liz Tuddenham) - 2026-06-30 09:04 +0100
                Re: valve cooling? "J. P. Gilliver" <G6JPG@255soft.uk> - 2026-06-30 09:27 +0100
                Re: valve cooling? liz@poppyrecords.invalid.invalid (Liz Tuddenham) - 2026-06-30 10:28 +0100
                Re: valve cooling? "J. P. Gilliver" <G6JPG@255soft.uk> - 2026-06-30 18:56 +0100
                Re: valve cooling? JMB99 <mb@nospam.net> - 2026-07-01 13:07 +0100
                Re: valve cooling? NY <me@privacy.net> - 2026-07-01 15:46 +0100
                Re: valve cooling? Old John <watcombeman@yahoo.co.uk> - 2026-07-01 06:26 +0000
                Re: valve cooling? Max Demian <max_demian@bigfoot.com> - 2026-07-01 11:48 +0100
                Re: valve cooling? liz@poppyrecords.invalid.invalid (Liz Tuddenham) - 2026-07-01 12:11 +0100
        Re: valve cooling? JMB99 <mb@nospam.net> - 2026-06-29 14:44 +0100
      Re: valve cooling? Andy Burns <usenet@andyburns.uk> - 2026-06-30 10:44 +0100
        Re: valve cooling? "J. P. Gilliver" <G6JPG@255soft.uk> - 2026-06-30 19:03 +0100

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