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Groups > alt.folklore.computers > #155084
| From | Bob Eager <news0005@eager.cx> |
|---|---|
| Newsgroups | alt.folklore.computers |
| Subject | Re: 1957 LED |
| Date | 2015-12-12 01:04 +0000 |
| Message-ID | <dd1a5eFi7moU4@mid.individual.net> (permalink) |
| References | (5 earlier) <20151211154649.335634cf5f6d52729fd8857f@eircom.net> <n4f1gp$gts$1@dont-email.me> <20151211183415.fc6f3fea1533aabf7476e9c7@eircom.net> <n4ffm3$c9n$1@dont-email.me> <alpine.LNX.2.02.1512111905180.29861@darkstar.example.org> |
On Fri, 11 Dec 2015 19:07:35 -0500, Michael Black wrote: > On Fri, 11 Dec 2015, Charles Richmond wrote: > >> "Ahem A Rivet's Shot" <steveo@eircom.net> wrote in message >> news:20151211183415.fc6f3fea1533aabf7476e9c7@eircom.net... >>> On Fri, 11 Dec 2015 17:37:48 -0000 "gareth" >>> <no.spam@thank.you.invalid> wrote: >>> >>> [snip...] [snip...] [snip...] >>> >>> >>>> The point being, of course, that in commercial products, the black >>>> paint peeling off resulted in undesirable photo-electric effects, so >>>> requiring a change to an opaque filling. >>> >>> Yeah I heard that claim - it seemed specious, after all in most >>> commercial products the transistors were inside a box that didn't let >>> a lot of light in. >>> >>> >> I remember having a very early transistor radio that used germanium >> transistors. These transistors were in little metal cans that I think >> block most all of the light to the transistor junctions. >> > I'm not sure when plastic transistors came along, but yes, I think early > transistors were strictly metal cased. > > On the other hand, later transistors in plastic cases weren't clear > plastic. But it may be that early transistors, which were germanium, > needed some space around the "chip", I know they had some problem in the > long run, while silicon transistors, that eventually came to dominate, > could be closer packed. As I implied in a previous post, some of the germanium ones were in a glass case, with some 'jelly' (light blue I think) filling the gap between that and the 'chip'. -- Using UNIX since v6 (1975)... Use the BIG mirror service in the UK: http://www.mirrorservice.org
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1957 LED hancock4@bbs.cpcn.com - 2015-12-10 11:03 -0800
Re: 1957 LED Al Kossow <aek@bitsavers.org> - 2015-12-10 11:06 -0800
Re: 1957 LED Michael Black <et472@ncf.ca> - 2015-12-10 14:44 -0500
Re: 1957 LED hancock4@bbs.cpcn.com - 2015-12-11 07:41 -0800
Re: 1957 LED Ahem A Rivet's Shot <steveo@eircom.net> - 2015-12-11 16:37 +0000
Re: 1957 LED Michael Black <et472@ncf.ca> - 2015-12-11 14:42 -0500
Re: 1957 LED philo <philo@privacy.net> - 2015-12-10 13:56 -0600
Re: 1957 LED Michael Black <et472@ncf.ca> - 2015-12-10 22:59 -0500
Re: 1957 LED "Osmium" <r124c4u102@comcast.net> - 2015-12-11 08:20 -0600
Re: 1957 LED Michael Black <et472@ncf.ca> - 2015-12-11 14:33 -0500
Re: 1957 LED Quadibloc <jsavard@ecn.ab.ca> - 2015-12-13 07:58 -0800
Re: 1957 LED Michael Black <et472@ncf.ca> - 2015-12-13 13:00 -0500
Re: 1957 LED Lon <lon.stowell@comcast.net> - 2015-12-13 12:48 -0700
Re: 1957 LED Stan Barr <plan.b@bluesomatic.org> - 2015-12-14 09:07 +0000
Re: 1957 LED Michael Black <et472@ncf.ca> - 2015-12-14 11:47 -0500
Re: 1957 LED rpw3@rpw3.org (Rob Warnock) - 2015-12-16 14:55 +0000
Re: 1957 LED Stan Barr <plan.b@bluesomatic.org> - 2015-12-16 16:32 +0000
Re: 1957 LED Michael Black <et472@ncf.ca> - 2015-12-16 14:17 -0500
Re: 1957 LED "Charles Richmond" <numerist@aquaporin4.com> - 2015-12-16 18:15 -0600
Re: 1957 LED Stan Barr <plan.b@bluesomatic.org> - 2015-12-17 07:58 +0000
Re: 1957 LED Andrew Swallow <am.swallow@btinternet.com> - 2015-12-17 13:21 +0000
Re: 1957 LED Ingo Paschke <ipaschke@lpclabs.de> - 2015-12-14 11:11 +0100
Re: 1957 LED Stephen Wolstenholme <steve@easynn.com> - 2015-12-11 10:58 +0000
Re: 1957 LED Lon <lon.stowell@comcast.net> - 2015-12-13 12:50 -0700
Re: 1957 LED Stephen Wolstenholme <steve@easynn.com> - 2015-12-14 12:57 +0000
Re: 1957 LED "gareth" <no.spam@thank.you.invalid> - 2015-12-14 14:07 +0000
Re: 1957 LED Stephen Wolstenholme <steve@easynn.com> - 2015-12-14 14:33 +0000
Re: 1957 LED hancock4@bbs.cpcn.com - 2015-12-11 07:31 -0800
Re: 1957 LED Quadibloc <jsavard@ecn.ab.ca> - 2015-12-13 07:42 -0800
Re: 1957 LED Ahem A Rivet's Shot <steveo@eircom.net> - 2015-12-14 09:39 +0000
Re: 1957 LED Jon Elson <jmelson@wustl.edu> - 2015-12-14 17:07 -0600
Re: 1957 LED Alfred Falk <falk@arc.ab.ca> - 2015-12-15 18:53 +0000
Re: 1957 LED Michael Black <et472@ncf.ca> - 2015-12-15 15:05 -0500
Re: 1957 LED hancock4@bbs.cpcn.com - 2015-12-16 07:32 -0800
Re: 1957 LED Alfred Falk <falk@arc.ab.ca> - 2015-12-16 17:23 +0000
Re: 1957 LED Michael Black <et472@ncf.ca> - 2015-12-16 14:23 -0500
Re: 1957 LED Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2015-12-16 20:13 +0000
Re: 1957 LED hancock4@bbs.cpcn.com - 2015-12-16 13:15 -0800
Re: 1957 LED Michael Black <et472@ncf.ca> - 2015-12-17 14:53 -0500
Re: 1957 LED "Charles Richmond" <numerist@aquaporin4.com> - 2015-12-17 14:17 -0600
Re: 1957 LED Michael Black <et472@ncf.ca> - 2015-12-18 19:43 -0500
Re: 1957 LED "Charles Richmond" <numerist@aquaporin4.com> - 2015-12-20 20:02 -0600
Re: 1957 LED hancock4@bbs.cpcn.com - 2015-12-21 10:31 -0800
Re: 1957 LED Michael Black <et472@ncf.ca> - 2015-12-21 14:53 -0500
Re: 1957 LED mausg@mail.com - 2015-12-21 20:27 +0000
Re: 1957 LED Uncle Steve <stevet810@gmail.com> - 2015-12-17 18:48 -0500
Re: 1957 LED davidmylastname@acm.org (David Griffith) - 2015-12-16 02:43 +0000
Re: 1957 LED Mike Spencer <mds@bogus.nodomain.nowhere> - 2015-12-16 17:44 -0400
Re: 1957 LED scott@slp53.sl.home (Scott Lurndal) - 2015-12-10 19:13 +0000
Re: 1957 LED "gareth" <no.spam@thank.you.invalid> - 2015-12-10 20:17 +0000
Re: 1957 LED Lawrence Statton <lawrence@sengiuo.mx> - 2015-12-10 17:10 -0600
Re: 1957 LED Michael Black <et472@ncf.ca> - 2015-12-10 23:00 -0500
Re: 1957 LED isw <isw@witzend.com> - 2015-12-10 21:21 -0800
Re: 1957 LED Stan Barr <plan.b@bluesomatic.org> - 2015-12-11 08:01 +0000
Re: 1957 LED Michael Black <et472@ncf.ca> - 2015-12-11 14:30 -0500
Re: 1957 LED "Charles Richmond" <numerist@aquaporin4.com> - 2015-12-11 15:36 -0600
Re: 1957 LED Stan Barr <plan.b@bluesomatic.org> - 2015-12-12 07:55 +0000
Re: 1957 LED mausg@mail.com - 2015-12-12 11:20 +0000
Re: 1957 LED Stan Barr <plan.b@bluesomatic.org> - 2015-12-12 15:39 +0000
Re: 1957 LED Michael Black <et472@ncf.ca> - 2015-12-12 10:50 -0500
Re: 1957 LED Stan Barr <plan.b@bluesomatic.org> - 2015-12-13 08:00 +0000
Re: 1957 LED "gareth" <no.spam@thank.you.invalid> - 2015-12-13 11:10 +0000
Re: 1957 LED Lon <lon.stowell@comcast.net> - 2015-12-13 12:51 -0700
Re: 1957 LED "gareth" <no.spam@thank.you.invalid> - 2015-12-11 10:59 +0000
Re: 1957 LED Ahem A Rivet's Shot <steveo@eircom.net> - 2015-12-11 15:46 +0000
Re: 1957 LED "gareth" <no.spam@thank.you.invalid> - 2015-12-11 17:37 +0000
Re: 1957 LED Ahem A Rivet's Shot <steveo@eircom.net> - 2015-12-11 18:34 +0000
Re: 1957 LED Michael Black <et472@ncf.ca> - 2015-12-11 14:49 -0500
Re: 1957 LED "Charles Richmond" <numerist@aquaporin4.com> - 2015-12-11 15:39 -0600
Re: 1957 LED Bob Eager <news0005@eager.cx> - 2015-12-11 22:46 +0000
Re: 1957 LED Michael Black <et472@ncf.ca> - 2015-12-11 19:07 -0500
Re: 1957 LED Bob Eager <news0005@eager.cx> - 2015-12-12 01:04 +0000
Re: 1957 LED Ahem A Rivet's Shot <steveo@eircom.net> - 2015-12-12 08:54 +0000
Re: 1957 LED hancock4@bbs.cpcn.com - 2015-12-11 11:52 -0800
Re: 1957 LED "Charles Richmond" <numerist@aquaporin4.com> - 2015-12-11 15:46 -0600
Re: 1957 LED Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2015-12-11 22:56 +0000
Re: 1957 LED "Charles Richmond" <numerist@aquaporin4.com> - 2015-12-11 15:35 -0600
Re: 1957 LED Quadibloc <jsavard@ecn.ab.ca> - 2015-12-13 07:51 -0800
Re: 1957 LED Lawrence Statton <lawrence@senguio.mx> - 2015-12-10 17:09 -0600
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