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Groups > alt.folklore.computers > #152478

Re: Modern computer brochures; military security; then and now ?

From Michael Black <et472@ncf.ca>
Newsgroups alt.folklore.computers
Subject Re: Modern computer brochures; military security; then and now ?
Date 2015-10-08 12:27 -0400
Organization National Capital Freenet, Ottawa, Ontario, Canada
Message-ID <alpine.LNX.2.02.1510081223570.9383@darkstar.example.org> (permalink)
References (7 earlier) <alpine.LNX.2.02.1510062307260.6634@darkstar.example.org> <0c5d089e-bdf2-4852-93b4-38f31ecc694a@googlegroups.com> <alpine.LNX.2.02.1510071153130.7777@darkstar.example.org> <3ncRx.61042$YG4.44327@fx14.iad> <slrnn1c54p.8un.plan.b@ID-309335.user.uni-berlin.de>

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On Thu, 8 Oct 2015, Stan Barr wrote:

> On Wed, 07 Oct 2015 17:11:27 GMT, Scott Lurndal <scott@slp53.sl.home> wrote:
>>
>> I regret, somewhat, turning down the Collins R390 that a friend
>> was selling, but that thing weighed a ton.
>
> Always wanted one of them!   My Racal RA-17 is about the same weight...

I read somewhere a few months ago that that Racal (it's the one with the 
Wadley Loop?) was intended to be the UK equivalent of the R390.  SO they 
probably are equivalent receivers, certainly they were both expensive when 
new.  And if it uses the Wadley Loop, they got away without having to use 
all those crystals.

>>
>> I do have a Stewart-Warner from the 30's (was my grandparents) with
>> tubes, but I suspect that the caps are long shot; and who knows if the
>> tubes are (1) any good, or (2) replacable.  Not to mention the difficulty
>> of acquiring 'A' and 'B' sized batteries :-)
>>
>
> There are devices available that produce the voltages by switch-mode
> methods from AA batteries.  They are usually sized so the will fit
> into the cardboard outer af an original battery for an authentic
> appearance.
>
The collectors even trade scans of the covers of the old batteries, so
it will look like the original.

The A batteries are the real problem, relatively high current at 1.5V. 
The high voltage B battery doesn't require much current.  Many have gotten 
away with a string of 9v batteries, they add up fast, though I guess 
that's been for mostly home made projects using tubes.

   Michael

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Modern computer brochures; military security;  then and now ? hancock4@bbs.cpcn.com - 2015-09-21 09:38 -0700
  Re: Modern computer brochures; military security;  then and now ? "Charles Richmond" <numerist@aquaporin4.com> - 2015-09-21 14:00 -0500
    Re: Modern computer brochures; military security;  then and now ? Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2015-09-21 20:20 +0000
    Re: Modern computer brochures; military security; then and now ? Peter Flass <peter_flass@yahoo.com> - 2015-09-21 21:37 +0000
  Re: Modern computer brochures; military security;  then and now ? Jon Elson <jmelson@wustl.edu> - 2015-09-21 17:59 -0500
    Re: Modern computer brochures; military security;  then and now ? Gene Wirchenko <genew@telus.net> - 2015-09-22 18:13 -0700
    Re: Modern computer brochures; military security;  then and now ? Bill Marcum <bill.marcum57@gmail.com> - 2015-10-04 02:04 +0000
      Re: Modern computer brochures; military security;  then and now ? Quadibloc <jsavard@ecn.ab.ca> - 2015-10-05 07:51 -0700
      Re: Modern computer brochures; military security;  then and now ? hancock4@bbs.cpcn.com - 2015-10-05 10:31 -0700
        Re: Modern computer brochures; military security;  then and now ? "Osmium" <r124c4u102@comcast.net> - 2015-10-05 12:39 -0500
          Re: Modern computer brochures; military security;  then and now ? Michael Black <et472@ncf.ca> - 2015-10-05 13:57 -0400
            Re: Modern computer brochures; military security;  then and now ? Anne & Lynn Wheeler <lynn@garlic.com> - 2015-10-05 12:00 -0700
          Re: Modern computer brochures; military security;  then and now ? John Levine <johnl@iecc.com> - 2015-10-05 21:59 +0000
        Re: Modern computer brochures; military security;  then and now ? Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2015-10-05 17:56 +0000
          Re: Modern computer brochures; military security;  then and now ? "Charles Richmond" <numerist@aquaporin4.com> - 2015-10-05 15:57 -0500
        Re: Modern computer brochures; military security;  then and now ? Michael Black <et472@ncf.ca> - 2015-10-05 14:04 -0400
          Re: Modern computer brochures; military security;  then and now ? "Charles Richmond" <numerist@aquaporin4.com> - 2015-10-05 16:05 -0500
            Re: Modern computer brochures; military security;  then and now ? scott@slp53.sl.home (Scott Lurndal) - 2015-10-06 13:14 +0000
              Re: Modern computer brochures; military security;  then and now ? "Osmium" <r124c4u102@comcast.net> - 2015-10-06 08:28 -0500
                Re: Modern computer brochures; military security;  then and now ? Michael LeVine <mlevinespmfltr@redshift.com> - 2015-10-06 07:23 -0700
                Re: Modern computer brochures; military security;  then and now ? Ahem A Rivet's Shot <steveo@eircom.net> - 2015-10-06 15:04 +0100
                Re: Modern computer brochures; military security;  then and now ? Morten Reistad <first@last.name.invalid> - 2015-10-06 17:49 +0200
                Re: Modern computer brochures; military security;  then and now ? Ahem A Rivet's Shot <steveo@eircom.net> - 2015-10-06 17:38 +0100
                Re: Modern computer brochures; military security;  then and now ? Morten Reistad <first@last.name.invalid> - 2015-10-06 22:49 +0200
                Re: Modern computer brochures; military security;  then and now ? Ahem A Rivet's Shot <steveo@eircom.net> - 2015-10-07 08:12 +0100
                Re: Modern computer brochures; military security;  then and now ? Morten Reistad <first@last.name.invalid> - 2015-10-07 19:37 +0200
                Re: Modern computer brochures; military security;  then and now ? Jon Elson <jmelson@wustl.edu> - 2015-10-07 14:45 -0500
                Re: Modern computer brochures; military security;  then and now ? Morten Reistad <first@last.name.invalid> - 2015-10-07 23:41 +0200
                Re: Modern computer brochures; military security;  then and now ? Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2015-10-08 05:14 +0000
                Re: Modern computer brochures; military security;  then and now ? Morten Reistad <first@last.name.invalid> - 2015-10-08 09:12 +0200
                Re: Modern computer brochures; military security; then and now ? Peter Flass <peter_flass@yahoo.com> - 2015-10-08 12:26 -0400
                Re: Modern computer brochures; military security; then and now ? scott@slp53.sl.home (Scott Lurndal) - 2015-10-08 16:46 +0000
                Re: Modern computer brochures; military security;  then and now ? "Charles Richmond" <numerist@aquaporin4.com> - 2015-10-08 16:22 -0500
                Re: Modern computer brochures; military security;  then and now ? Quadibloc <jsavard@ecn.ab.ca> - 2015-10-08 20:40 -0700
                Re: Modern computer brochures; military security;  then and now ? Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2015-10-09 16:47 +0000
                Re: Modern computer brochures; military security;  then and now ? Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2015-10-06 17:13 +0000
                Re: Modern computer brochures; military security;  then and now ? hancock4@bbs.cpcn.com - 2015-10-06 10:40 -0700
                Re: Modern computer brochures; military security;  then and now ? terry+googleblog@tmk.com - 2015-10-06 12:38 -0700
                Re: Modern computer brochures; military security;  then and now ? "Charles Richmond" <numerist@aquaporin4.com> - 2015-10-06 15:33 -0500
                Re: Modern computer brochures; military security;  then and now ? hancock4@bbs.cpcn.com - 2015-10-06 14:19 -0700
                Re: Modern computer brochures; military security;  then and now ? Quadibloc <jsavard@ecn.ab.ca> - 2015-10-06 17:24 -0700
                Re: Modern computer brochures; military security;  then and now ? Greymaus <mausg@mail.com> - 2015-10-07 10:24 +0000
                Re: Modern computer brochures; military security;  then and now ? Morten Reistad <first@last.name.invalid> - 2015-10-06 23:09 +0200
                Re: Modern computer brochures; military security;  then and now ? Greymaus <mausg@mail.com> - 2015-10-06 18:27 +0000
                Re: Modern computer brochures; military security;  then and now ? hancock4@bbs.cpcn.com - 2015-10-06 10:32 -0700
                Re: Modern computer brochures; military security;  then and now ? Morten Reistad <first@last.name.invalid> - 2015-10-06 22:59 +0200
                Re: Modern computer brochures; military security;  then and now ? hancock4@bbs.cpcn.com - 2015-10-06 14:34 -0700
                Re: Modern computer brochures; military security;  then and now ? scott@slp53.sl.home (Scott Lurndal) - 2015-10-07 13:06 +0000
                Re: Modern computer brochures; military security;  then and now ? Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2015-10-06 23:50 +0000
                Re: Modern computer brochures; military security;  then and now ? Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2015-10-06 17:00 +0000
                Re: Modern computer brochures; military security;  then and now ? Stan Barr <plan.b@bluesomatic.org> - 2015-10-07 07:55 +0000
                Re: Modern computer brochures; military security;  then and now ? Greymaus <mausg@mail.com> - 2015-10-07 10:39 +0000
                Re: Modern computer brochures; military security;  then and now ? Morten Reistad <first@last.name.invalid> - 2015-10-07 19:43 +0200
                Re: Modern computer brochures; military security;  then and now ? Morten Reistad <first@last.name.invalid> - 2015-10-07 19:40 +0200
                Re: Modern computer brochures; military security;  then and now ? Greymaus <mausg@mail.com> - 2015-10-06 18:21 +0000
                Re: Modern computer brochures; military security; then and now ? Andrew Swallow <am.swallow@btinternet.com> - 2015-10-07 00:56 +0100
                Re: Modern computer brochures; military security; then and now ? lawrence@cluon.com - 2015-10-08 16:55 +0200
              Re: Modern computer brochures; military security;  then and now ? Stan Barr <plan.b@bluesomatic.org> - 2015-10-06 14:29 +0000
                Re: Modern computer brochures; military security;  then and now ? "Charles Richmond" <numerist@aquaporin4.com> - 2015-10-06 15:44 -0500
                Re: Modern computer brochures; military security;  then and now ? hancock4@bbs.cpcn.com - 2015-10-06 14:22 -0700
                Re: Modern computer brochures; military security; then and now ? Stephen Sprunk <stephen@sprunk.org> - 2015-10-06 17:49 -0500
                Re: Modern computer brochures; military security;  then and now ? Greymaus <mausg@mail.com> - 2015-10-07 10:26 +0000
              Re: Modern computer brochures; military security;  then and now ? hancock4@bbs.cpcn.com - 2015-10-06 07:49 -0700
                Re: Modern computer brochures; military security;  then and now ? Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2015-10-06 17:00 +0000
                Re: Modern computer brochures; military security;  then and now ? Quadibloc <jsavard@ecn.ab.ca> - 2015-10-06 10:46 -0700
                Re: Modern computer brochures; military security;  then and now ? "Charles Richmond" <numerist@aquaporin4.com> - 2015-10-06 15:51 -0500
                Re: Modern computer brochures; military security;  then and now ? Ahem A Rivet's Shot <steveo@eircom.net> - 2015-10-07 08:29 +0100
                Re: Modern computer brochures; military security;  then and now ? hancock4@bbs.cpcn.com - 2015-10-07 07:40 -0700
                Re: Modern computer brochures; military security;  then and now ? scott@slp53.sl.home (Scott Lurndal) - 2015-10-07 15:02 +0000
                Re: Modern computer brochures; military security;  then and now ? Dan Espen <despen@verizon.net> - 2015-10-07 11:57 -0400
                Re: Modern computer brochures; military security;  then and now ? scott@slp53.sl.home (Scott Lurndal) - 2015-10-07 17:02 +0000
                Re: Modern computer brochures; military security;  then and now ? Dan Espen <despen@verizon.net> - 2015-10-07 13:43 -0400
                Re: Modern computer brochures; military security;  then and now ? hancock4@bbs.cpcn.com - 2015-10-07 09:44 -0700
                Re: Modern computer brochures; military security;  then and now ? Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2015-10-07 16:55 +0000
                Re: Modern computer brochures; military security;  then and now ? scott@slp53.sl.home (Scott Lurndal) - 2015-10-07 17:07 +0000
                Re: Modern computer brochures; military security;  then and now ? Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2015-10-07 21:18 +0000
                Re: Modern computer brochures; military security;  then and now ? Dan Espen <despen@verizon.net> - 2015-10-07 13:49 -0400
                Re: Modern computer brochures; military security;  then and now ? scott@slp53.sl.home (Scott Lurndal) - 2015-10-07 19:19 +0000
                Re: Modern computer brochures; military security;  then and now ? Greymaus <mausg@mail.com> - 2015-10-07 10:30 +0000
                Re: Modern computer brochures; military security; then and now ? Dave Garland <dave.garland@wizinfo.com> - 2015-10-07 12:41 -0500
                Re: Modern computer brochures; military security;  then and now ? Quadibloc <jsavard@ecn.ab.ca> - 2015-10-07 05:34 -0700
                Re: Modern computer brochures; military security;  then and now ? Stan Barr <plan.b@bluesomatic.org> - 2015-10-07 07:13 +0000
                Re: Modern computer brochures; military security;  then and now ? Michael Black <et472@ncf.ca> - 2015-10-07 09:54 -0400
              Re: Modern computer brochures; military security;  then and now ? Michael Black <et472@ncf.ca> - 2015-10-06 11:39 -0400
                Re: Modern computer brochures; military security;  then and now ? scott@slp53.sl.home (Scott Lurndal) - 2015-10-06 16:04 +0000
                Re: Modern computer brochures; military security;  then and now ? Michael Black <et472@ncf.ca> - 2015-10-06 13:15 -0400
                Re: Modern computer brochures; military security;  then and now ? hancock4@bbs.cpcn.com - 2015-10-06 10:36 -0700
                Re: Modern computer brochures; military security;  then and now ? scott@slp53.sl.home (Scott Lurndal) - 2015-10-06 18:53 +0000
                Re: Modern computer brochures; military security;  then and now ? "Charles Richmond" <numerist@aquaporin4.com> - 2015-10-06 15:58 -0500
                Re: Modern computer brochures; military security;  then and now ? "Osmium" <r124c4u102@comcast.net> - 2015-10-06 16:25 -0500
                Re: Modern computer brochures; military security;  then and now ? "Charles Richmond" <numerist@aquaporin4.com> - 2015-10-08 16:30 -0500
                Re: Modern computer brochures; military security;  then and now ? Michael Black <et472@ncf.ca> - 2015-10-08 20:53 -0400
                Re: Modern computer brochures; military security;  then and now ? Paul <pssawyer@comcast.net.INVALID> - 2015-10-09 19:10 +0000
                Re: Modern computer brochures; military security;  then and now ? "Charles Richmond" <numerist@aquaporin4.com> - 2015-10-09 15:03 -0500
                Re: Modern computer brochures; military security;  then and now ? "Osmium" <r124c4u102@comcast.net> - 2015-10-09 15:56 -0500
                Re: Modern computer brochures; military security;  then and now ? "Charles Richmond" <numerist@aquaporin4.com> - 2015-10-09 16:51 -0500
                Re: Modern computer brochures; military security;  then and now ? hancock4@bbs.cpcn.com - 2015-10-06 14:17 -0700
                Re: Modern computer brochures; military security;  then and now ? Michael Black <et472@ncf.ca> - 2015-10-06 23:14 -0400
                Re: Modern computer brochures; military security;  then and now ? hancock4@bbs.cpcn.com - 2015-10-07 07:35 -0700
                Re: Modern computer brochures; military security;  then and now ? Michael Black <et472@ncf.ca> - 2015-10-07 11:57 -0400
                Re: Modern computer brochures; military security;  then and now ? scott@slp53.sl.home (Scott Lurndal) - 2015-10-07 17:11 +0000
                Re: Modern computer brochures; military security;  then and now ? Michael Black <et472@ncf.ca> - 2015-10-07 13:35 -0400
                Re: Modern computer brochures; military security;  then and now ? Stan Barr <plan.b@bluesomatic.org> - 2015-10-08 07:00 +0000
                Re: Modern computer brochures; military security;  then and now ? Morten Reistad <first@last.name.invalid> - 2015-10-08 13:08 +0200
                Re: Modern computer brochures; military security;  then and now ? Ahem A Rivet's Shot <steveo@eircom.net> - 2015-10-08 13:29 +0100
                Re: Modern computer brochures; military security;  then and now ? Stan Barr <plan.b@bluesomatic.org> - 2015-10-08 15:21 +0000
                Re: Modern computer brochures; military security;  then and now ? "Osmium" <r124c4u102@comcast.net> - 2015-10-08 07:55 -0500
                Re: Modern computer brochures; military security;  then and now ? Michael Black <et472@ncf.ca> - 2015-10-08 12:27 -0400
                Re: Modern computer brochures; military security;  then and now ? Al Kossow <aek@bitsavers.org> - 2015-10-06 12:04 -0700
                Re: Modern computer brochures; military security;  then and now ? "Charles Richmond" <numerist@aquaporin4.com> - 2015-10-06 16:02 -0500
                Re: Modern computer brochures; military security;  then and now ? Michael Black <et472@ncf.ca> - 2015-10-06 22:55 -0400
                Re: Modern computer brochures; military security; then and now ? Dave Garland <dave.garland@wizinfo.com> - 2015-10-07 00:15 -0500
                Re: Modern computer brochures; military security;  then and now ? "Charles Richmond" <numerist@aquaporin4.com> - 2015-10-06 15:54 -0500
                Re: Modern computer brochures; military security;  then and now ? hancock4@bbs.cpcn.com - 2015-10-06 14:26 -0700
                Re: Modern computer brochures; military security;  then and now ? Quadibloc <jsavard@ecn.ab.ca> - 2015-10-06 17:26 -0700
                Re: Modern computer brochures; military security;  then and now ? Quadibloc <jsavard@ecn.ab.ca> - 2015-10-06 17:30 -0700
                Re: Modern computer brochures; military security;  then and now ? hancock4@bbs.cpcn.com - 2015-10-07 07:24 -0700
                Re: Modern computer brochures; military security;  then and now ? Stan Barr <plan.b@bluesomatic.org> - 2015-10-07 07:50 +0000
                Re: Modern computer brochures; military security;  then and now ? lawrence@cluon.com - 2015-10-08 16:30 +0200
                Re: Modern computer brochures; military security;  then and now ? Michael Black <et472@ncf.ca> - 2015-10-08 12:22 -0400
        Re: Modern computer brochures; military security;  then and now ? Rich Alderson <news@alderson.users.panix.com> - 2015-10-05 15:48 -0400
          Re: Modern computer brochures; military security;  then and now ? scott@slp53.sl.home (Scott Lurndal) - 2015-10-05 20:24 +0000
            Re: Modern computer brochures; military security; then and now ? Stephen Sprunk <stephen@sprunk.org> - 2015-10-05 19:37 -0500
            Re: Modern computer brochures; military security;  then and now ? Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2015-10-06 17:00 +0000
          Re: Modern computer brochures; military security;  then and now ? hancock4@bbs.cpcn.com - 2015-10-05 13:38 -0700
            Re: Modern computer brochures; military security; then and now ? Dave Garland <dave.garland@wizinfo.com> - 2015-10-05 18:48 -0500
  Re: Modern computer brochures; military security;  then and now ? Quadibloc <jsavard@ecn.ab.ca> - 2015-09-21 20:31 -0700
    Re: Modern computer brochures; military security;  then and now ? "Charles Richmond" <numerist@aquaporin4.com> - 2015-09-22 17:09 -0500
      Re: Modern computer brochures; military security;  then and now ? Greymaus <mausg@mail.com> - 2015-09-23 11:24 +0000
    Re: Modern computer brochures; military security; then and now ? Lon <lon.stowell@comcast.net> - 2015-09-27 16:43 -0600

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