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Don Bowey
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 Posted: Mon Apr 21, 2008 10:43 am Post subject: Re: Si-diodes in Second World War radar & Communication equi |
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On 4/20/08 8:03 PM, in article fq0o0456in1873ki1d5srtsh611eq1a3nj@4ax.com,
"JosephKK" <quiettechblue@yahoo.com> wrote:
[quote]On Sun, 20 Apr 2008 13:59:36 -0700, Don Bowey <dbowey@comcast.net
wrote:
On 4/20/08 11:26 AM, in article am2n04hciv1c0trs9vmfala4pf78ic80nb@4ax.com,
"JosephKK" <quiettechblue@yahoo.com> wrote:
On Sat, 12 Apr 2008 11:29:18 -0500, John Fields
jfields@austininstruments.com> wrote:
On Sat, 12 Apr 2008 11:24:19 -0500, John Fields
jfields@austininstruments.com> wrote:
On Sat, 12 Apr 2008 17:51:10 +0200, "ronwer"
neo.dymium.removethisfirst@dontwantspam.yahoo.com> wrote:
Hi!
I am doing a study into the early use of silicon diodes in radar and
communication equipment during the Second World War.
What I would be interested in is as follows:
-type numbers of the diodes
---
1N23 is a good place to start.
---
Oops... brain fart.
The 1N23 didn>t appear until the '50>s, I believe.
JF
Not only that it was germanium not silicon.
Do you have a solid reference for that? "Credible" references I found said
they were silicon.
The most conclusive evidence i know of, is someone here who actually
put one to test and the result was germanium. A heck of a lot of
"official" or "authoritative" records are pure fertilizer.
[/quote]
I>d chock that one up to undecided. |
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John Fields
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| Posted: Mon Apr 21, 2008 7:25 pm Post subject: Re: Si-diodes in Second World War radar & Communication equi |
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On Sun, 20 Apr 2008 19:38:28 -0700, John Larkin
<jjlarkin@highNOTlandTHIStechnologyPART.com> wrote:
[quote]On Sun, 20 Apr 2008 18:29:32 -0500, John Fields
jfields@austininstruments.com> wrote:
On Sun, 20
Cite?
JF
MIT RadLab books, volume 15, "Crystal Rectifiers", appendix D,
published in 1948.
What is the citation for your statement that "The 1N23 didn>t appear
until the '50>s, I believe." ?
John
[/quote]
---
Working with them At Loral Electronics in New York and being told that
they were new, as I recall.
JF |
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John Fields
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| Posted: Mon Apr 21, 2008 7:28 pm Post subject: Re: Si-diodes in Second World War radar & Communication equi |
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On Mon, 21 Apr 2008 03:03:32 GMT, JosephKK <quiettechblue@yahoo.com>
wrote:
[quote]On Sun, 20 Apr 2008 13:59:36 -0700, Don Bowey <dbowey@comcast.net
wrote:
Do you have a solid reference for that? "Credible" references I found said
they were silicon.
The most conclusive evidence i know of, is someone here who actually
put one to test and the result was germanium. A heck of a lot of
"official" or "authoritative" records are pure fertilizer.
[/quote]
---
Can you spell "Schottky?"
JF |
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John Larkin
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| Posted: Mon Apr 21, 2008 7:58 pm Post subject: Re: Si-diodes in Second World War radar & Communication equi |
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On Mon, 21 Apr 2008 09:25:01 -0500, John Fields
<jfields@austininstruments.com> wrote:
[quote]On Sun, 20 Apr 2008 19:38:28 -0700, John Larkin
jjlarkin@highNOTlandTHIStechnologyPART.com> wrote:
On Sun, 20 Apr 2008 18:29:32 -0500, John Fields
jfields@austininstruments.com> wrote:
On Sun, 20
Cite?
JF
MIT RadLab books, volume 15, "Crystal Rectifiers", appendix D,
published in 1948.
What is the citation for your statement that "The 1N23 didn>t appear
until the '50>s, I believe." ?
John
---
Working with them At Loral Electronics in New York and being told that
they were new, as I recall.
JF
[/quote]
There were 1N23A>s B>s, C>s, and maybe D>s. 1N23, A and B were wartime
parts. Could have been C+ they were talking about. Or maybe they were
just wrong.
John |
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John Fields
Guest
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| Posted: Mon Apr 21, 2008 9:24 pm Post subject: Re: Si-diodes in Second World War radar & Communication equi |
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On Mon, 21 Apr 2008 07:58:29 -0700, John Larkin
<jjlarkin@highNOTlandTHIStechnologyPART.com> wrote:
[quote]On Mon, 21 Apr 2008 09:25:01 -0500, John Fields
jfields@austininstruments.com> wrote:
On Sun, 20 Apr 2008 19:38:28 -0700, John Larkin
jjlarkin@highNOTlandTHIStechnologyPART.com> wrote:
On Sun, 20 Apr 2008 18:29:32 -0500, John Fields
jfields@austininstruments.com> wrote:
On Sun, 20
Cite?
JF
MIT RadLab books, volume 15, "Crystal Rectifiers", appendix D,
published in 1948.
What is the citation for your statement that "The 1N23 didn>t appear
until the '50>s, I believe." ?
John
---
Working with them At Loral Electronics in New York and being told that
they were new, as I recall.
JF
There were 1N23A>s B>s, C>s, and maybe D>s. 1N23, A and B were wartime
parts. Could have been C+ they were talking about. Or maybe they were
just wrong.
[/quote]
---
Typical Larkinese...
JF |
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Jim Thompson
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| Posted: Mon Apr 21, 2008 9:41 pm Post subject: Re: Si-diodes in Second World War radar & Communication equi |
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On Mon, 21 Apr 2008 11:24:46 -0500, John Fields
<jfields@austininstruments.com> wrote:
[quote]On Mon, 21 Apr 2008 07:58:29 -0700, John Larkin
jjlarkin@highNOTlandTHIStechnologyPART.com> wrote:
On Mon, 21 Apr 2008 09:25:01 -0500, John Fields
jfields@austininstruments.com> wrote:
On Sun, 20 Apr 2008 19:38:28 -0700, John Larkin
jjlarkin@highNOTlandTHIStechnologyPART.com> wrote:
On Sun, 20 Apr 2008 18:29:32 -0500, John Fields
jfields@austininstruments.com> wrote:
On Sun, 20
Cite?
JF
MIT RadLab books, volume 15, "Crystal Rectifiers", appendix D,
published in 1948.
What is the citation for your statement that "The 1N23 didn>t appear
until the '50>s, I believe." ?
John
---
Working with them At Loral Electronics in New York and being told that
they were new, as I recall.
JF
There were 1N23A>s B>s, C>s, and maybe D>s. 1N23, A and B were wartime
parts. Could have been C+ they were talking about. Or maybe they were
just wrong.
---
Typical Larkinese...
JF
[/quote]
Smart-ass ping-pong plonked... no redeeming social value ;-)
...Jim Thompson
--
| James E.Thompson, P.E. | mens |
| Analog Innovations, Inc. | et |
| Analog/Mixed-Signal ASIC>s and Discrete Systems | manus |
| Phoenix, Arizona Voice:(480)460-2350 | |
| E-mail Address at Website Fax:(480)460-2142 | Brass Rat |
| http://www.analog-innovations.com | 1962 |
America: Land of the Free, Because of the Brave |
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John Larkin
Guest
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| Posted: Tue Apr 22, 2008 2:04 am Post subject: Re: Si-diodes in Second World War radar & Communication equi |
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On Mon, 21 Apr 2008 11:24:46 -0500, John Fields
<jfields@austininstruments.com> wrote:
[quote]On Mon, 21 Apr 2008 07:58:29 -0700, John Larkin
jjlarkin@highNOTlandTHIStechnologyPART.com> wrote:
On Mon, 21 Apr 2008 09:25:01 -0500, John Fields
jfields@austininstruments.com> wrote:
On Sun, 20 Apr 2008 19:38:28 -0700, John Larkin
jjlarkin@highNOTlandTHIStechnologyPART.com> wrote:
On Sun, 20 Apr 2008 18:29:32 -0500, John Fields
jfields@austininstruments.com> wrote:
On Sun, 20
Cite?
JF
MIT RadLab books, volume 15, "Crystal Rectifiers", appendix D,
published in 1948.
What is the citation for your statement that "The 1N23 didn>t appear
until the '50>s, I believe." ?
John
---
Working with them At Loral Electronics in New York and being told that
they were new, as I recall.
JF
There were 1N23A>s B>s, C>s, and maybe D>s. 1N23, A and B were wartime
parts. Could have been C+ they were talking about. Or maybe they were
just wrong.
---
Typical Larkinese...
JF
[/quote]
You mean facts, as opposed to second-hand rumors you think you
remember? Guilty as charged.
John |
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John Fields
Guest
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| Posted: Tue Apr 22, 2008 4:23 am Post subject: Re: Si-diodes in Second World War radar & Communication equi |
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On Mon, 21 Apr 2008 14:04:18 -0700, John Larkin
<jjlarkin@highNOTlandTHIStechnologyPART.com> wrote:
[quote]On Mon, 21 Apr 2008 11:24:46 -0500, John Fields
jfields@austininstruments.com> wrote:
On Mon, 21 Apr 2008 07:58:29 -0700, John Larkin
jjlarkin@highNOTlandTHIStechnologyPART.com> wrote:
On Mon, 21 Apr 2008 09:25:01 -0500, John Fields
jfields@austininstruments.com> wrote:
On Sun, 20 Apr 2008 19:38:28 -0700, John Larkin
jjlarkin@highNOTlandTHIStechnologyPART.com> wrote:
On Sun, 20 Apr 2008 18:29:32 -0500, John Fields
jfields@austininstruments.com> wrote:
On Sun, 20
Cite?
JF
MIT RadLab books, volume 15, "Crystal Rectifiers", appendix D,
published in 1948.
What is the citation for your statement that "The 1N23 didn>t appear
until the '50>s, I believe." ?
John
---
Working with them At Loral Electronics in New York and being told that
they were new, as I recall.
JF
There were 1N23A>s B>s, C>s, and maybe D>s. 1N23, A and B were wartime
parts. Could have been C+ they were talking about. Or maybe they were
just wrong.
---
Typical Larkinese...
JF
You mean facts, as opposed to second-hand rumors you think you
remember? Guilty as charged.
[/quote]
---
"and Maybe"
"Could have been"
"Or maybe"
are facts?
Maybe in your fantasy world, but to me it all sounds like conjecture.
The _fact_ is I originally commented to the OP that his quest might be
made easier by considering the 1N23 as a starting point for silicon
detectors, but then amended my original comment to reflect that the
first time I had contact with them was in the '50>s, when I thought it
was new.
I guess, according to you, I was right in the first place.
Oh, well...
I guess your way is to clam up if you think you>ve made a mistake
unless someone calls you on it.
That>s not my way. If I think I>ve made a mistake I own up to it as
soon as it looks questionable to me without waiting for anyone to prod
me into forced admission.
Your mileage certainly seems to vary.
BTW, for some reason I>m prohibited from accessing the Rad Lab series
via:
http://www.jlab.org/ir/MITSeries.html
so would you be so kind as to post the text referring explicitly to
the 1N23 and relevant deployment dating?
Thank you ever so much...
JF |
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John Larkin
Guest
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| Posted: Tue Apr 22, 2008 5:18 am Post subject: Re: Si-diodes in Second World War radar & Communication equi |
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On Mon, 21 Apr 2008 18:23:40 -0500, John Fields
<jfields@austininstruments.com> wrote:
[quote]On Mon, 21 Apr 2008 14:04:18 -0700, John Larkin
jjlarkin@highNOTlandTHIStechnologyPART.com> wrote:
On Mon, 21 Apr 2008 11:24:46 -0500, John Fields
jfields@austininstruments.com> wrote:
On Mon, 21 Apr 2008 07:58:29 -0700, John Larkin
jjlarkin@highNOTlandTHIStechnologyPART.com> wrote:
On Mon, 21 Apr 2008 09:25:01 -0500, John Fields
jfields@austininstruments.com> wrote:
On Sun, 20 Apr 2008 19:38:28 -0700, John Larkin
jjlarkin@highNOTlandTHIStechnologyPART.com> wrote:
On Sun, 20 Apr 2008 18:29:32 -0500, John Fields
jfields@austininstruments.com> wrote:
On Sun, 20
Cite?
JF
MIT RadLab books, volume 15, "Crystal Rectifiers", appendix D,
published in 1948.
What is the citation for your statement that "The 1N23 didn>t appear
until the '50>s, I believe." ?
John
---
Working with them At Loral Electronics in New York and being told that
they were new, as I recall.
JF
There were 1N23A>s B>s, C>s, and maybe D>s. 1N23, A and B were wartime
parts. Could have been C+ they were talking about. Or maybe they were
just wrong.
---
Typical Larkinese...
JF
You mean facts, as opposed to second-hand rumors you think you
remember? Guilty as charged.
---
"and Maybe"
"Could have been"
"Or maybe"
are facts?
[/quote]
Certainly not. Those were conjectures on why you might have thought
that these parts were new in the 1950>s. As if it matters.
[quote]
Maybe in your fantasy world, but to me it all sounds like conjecture.
[/quote]
Those words do usually imply conjecture, yes.
[quote]
The _fact_ is I originally commented to the OP that his quest might be
made easier by considering the 1N23 as a starting point for silicon
detectors, but then amended my original comment to reflect that the
first time I had contact with them was in the '50>s, when I thought it
was new.
I guess, according to you, I was right in the first place.
[/quote]
If it>s so important to you to be right, you might consider checking
facts before posting. But do whatever>s fun.
[quote]
Oh, well...
I guess your way is to clam up if you think you>ve made a mistake
unless someone calls you on it.
That>s not my way. If I think I>ve made a mistake I own up to it as
soon as it looks questionable to me without waiting for anyone to prod
me into forced admission.
Your mileage certainly seems to vary.
BTW, for some reason I>m prohibited from accessing the Rad Lab series
via:
http://www.jlab.org/ir/MITSeries.html
so would you be so kind as to post the text referring explicitly to
the 1N23 and relevant deployment dating?
[/quote]
Nope, too much work. The books are widely available.
John |
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John Fields
Guest
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| Posted: Tue Apr 22, 2008 6:06 pm Post subject: Re: Si-diodes in Second World War radar & Communication equi |
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On Mon, 21 Apr 2008 17:18:02 -0700, John Larkin
<jjlarkin@highNOTlandTHIStechnologyPART.com> wrote:
[quote]On Mon, 21 Apr 2008 18:23:40 -0500, John Fields
jfields@austininstruments.com> wrote:
On Mon, 21 Apr 2008 14:04:18 -0700, John Larkin
jjlarkin@highNOTlandTHIStechnologyPART.com> wrote:
On Mon, 21 Apr 2008 11:24:46 -0500, John Fields
jfields@austininstruments.com> wrote:
On Mon, 21 Apr 2008 07:58:29 -0700, John Larkin
jjlarkin@highNOTlandTHIStechnologyPART.com> wrote:
On Mon, 21 Apr 2008 09:25:01 -0500, John Fields
jfields@austininstruments.com> wrote:
On Sun, 20 Apr 2008 19:38:28 -0700, John Larkin
jjlarkin@highNOTlandTHIStechnologyPART.com> wrote:
On Sun, 20 Apr 2008 18:29:32 -0500, John Fields
jfields@austininstruments.com> wrote:
On Sun, 20
Cite?
JF
MIT RadLab books, volume 15, "Crystal Rectifiers", appendix D,
published in 1948.
What is the citation for your statement that "The 1N23 didn>t appear
until the '50>s, I believe." ?
John
---
Working with them At Loral Electronics in New York and being told that
they were new, as I recall.
JF
There were 1N23A>s B>s, C>s, and maybe D>s. 1N23, A and B were wartime
parts. Could have been C+ they were talking about. Or maybe they were
just wrong.
---
Typical Larkinese...
JF
You mean facts, as opposed to second-hand rumors you think you
remember? Guilty as charged.
---
"and Maybe"
"Could have been"
"Or maybe"
are facts?
Certainly not. Those were conjectures on why you might have thought
that these parts were new in the 1950>s. As if it matters.
---[/quote]
Certainly seems to matter enough to you to keep posting about it.
---
[quote]Maybe in your fantasy world, but to me it all sounds like conjecture.
Those words do usually imply conjecture, yes.
[/quote]
[quote]The _fact_ is I originally commented to the OP that his quest might be
made easier by considering the 1N23 as a starting point for silicon
detectors, but then amended my original comment to reflect that the
first time I had contact with them was in the '50>s, when I thought it
was new.
I guess, according to you, I was right in the first place.
If it>s so important to you to be right, you might consider checking
facts before posting. But do whatever>s fun.
[/quote]
---
I am.
---
[quote]Oh, well...
I guess your way is to clam up if you think you>ve made a mistake
unless someone calls you on it.
That>s not my way. If I think I>ve made a mistake I own up to it as
soon as it looks questionable to me without waiting for anyone to prod
me into forced admission.
Your mileage certainly seems to vary.
BTW, for some reason I>m prohibited from accessing the Rad Lab series
via:
http://www.jlab.org/ir/MITSeries.html
so would you be so kind as to post the text referring explicitly to
the 1N23 and relevant deployment dating?
Nope, too much work. The books are widely available.
[/quote]
---
Geez, thanks John. That>s just about what I expected.
JF |
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Michael A. Terrell
Guest
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| Posted: Tue Apr 22, 2008 9:22 pm Post subject: Re: Si-diodes in Second World War radar & Communication equi |
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John Fields wrote:
[quote]
BTW, for some reason I>m prohibited from accessing the Rad Lab series
via:
http://www.jlab.org/ir/MITSeries.html
so would you be so kind as to post the text referring explicitly to
the 1N23 and relevant deployment dating?
[/quote]
John, you missed the note at the top of that page:
Note: These volumes are only accessable on site at Jefferson Lab.
--
http://improve-usenet.org/index.html
Use any search engine other than Google till they stop polluting USENET
with porn and junk commercial SPAM
If you have broadband, your ISP may have a NNTP news server included in
your account: http://www.usenettools.net/ISP.htm |
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John Larkin
Guest
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| Posted: Wed Apr 23, 2008 12:18 am Post subject: Re: Si-diodes in Second World War radar & Communication equi |
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On Tue, 22 Apr 2008 12:22:58 -0400, "Michael A. Terrell"
<mike.terrell@earthlink.net> wrote:
[quote]
John Fields wrote:
BTW, for some reason I>m prohibited from accessing the Rad Lab series
via:
http://www.jlab.org/ir/MITSeries.html
so would you be so kind as to post the text referring explicitly to
the 1N23 and relevant deployment dating?
John, you missed the note at the top of that page:
Note: These volumes are only accessable on site at Jefferson Lab.
[/quote]
Jlab (used to be CEBAF) has a 1/4 mile racetrack electron accelerator,
pumped by klystrons driving cool shiny superconductive cavities with
megavolt-per-meter fields and Q>s like 1e8 or something. Their site
has some interesting stuff. We did the electronics that measures all
the liquid helium temperatures and levels, and the microsteppers that
tume the cavities. That was probably the last major CAMAC installation
anywhere.
John |
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John Fields
Guest
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| Posted: Wed Apr 23, 2008 12:56 am Post subject: Re: Si-diodes in Second World War radar & Communication equi |
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On Tue, 22 Apr 2008 12:22:58 -0400, "Michael A. Terrell"
<mike.terrell@earthlink.net> wrote:
[quote]
John Fields wrote:
BTW, for some reason I>m prohibited from accessing the Rad Lab series
via:
http://www.jlab.org/ir/MITSeries.html
so would you be so kind as to post the text referring explicitly to
the 1N23 and relevant deployment dating?
John, you missed the note at the top of that page:
Note: These volumes are only accessable on site at Jefferson Lab.
[/quote]
---
Right. Thanks, :-)
JF |
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Rich Grise
Guest
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| Posted: Wed Apr 23, 2008 1:19 am Post subject: Re: Si-diodes in Second World War radar & Communication equi |
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On Sat, 12 Apr 2008 17:51:10 +0200, ronwer wrote:
[quote]
I am doing a study into the early use of silicon diodes in radar and
communication equipment during the Second World War.
[/quote]
Did they even _have_ silicon diodes in WWII? I remember when they
announced the first transistor, some time in the early 1950>s.
Thanks,
Rich |
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Eeyore
Guest
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| Posted: Wed Apr 23, 2008 1:30 am Post subject: Re: Si-diodes in Second World War radar & Communication equi |
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Rich Grise wrote:
[quote]On Sat, 12 Apr 2008 17:51:10 +0200, ronwer wrote:
I am doing a study into the early use of silicon diodes in radar and
communication equipment during the Second World War.
Did they even _have_ silicon diodes in WWII?
[/quote]
Very much so. Point contact types.
Graham |
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