B
Bob Engelhardt
Guest
It's 6mm long.
http://imgur.com/a/vg8dM
http://imgur.com/a/vg8dM
J
jfeng@my-deja.com
Guest
On Sunday, November 20, 2016 at 3:52:05 PM UTC-8, Tom Biasi wrote:
> ....it could be a germanium glass diode.
From the color bands, I think it could be a 1N89
http://www.americanmicrosemi.com/information/spec/?ss_pn=1N89
It certainly looks like one of the diodes in my junque collection from the 1960s.
> ....it could be a germanium glass diode.
From the color bands, I think it could be a 1N89
http://www.americanmicrosemi.com/information/spec/?ss_pn=1N89
It certainly looks like one of the diodes in my junque collection from the 1960s.
Guest
On Sunday, November 20, 2016 at 5:52:00 PM UTC-5, Bob Engelhardt wrote:
it's an old diode. Ah, the good ole daze...
it's an old diode. Ah, the good ole daze...
J
Jim Thompson
Guest
On Sun, 20 Nov 2016 17:51:46 -0500, Bob Engelhardt
<BobEngelhardt@comcast.net> wrote:
Crappy picture but it looks to me like there's two die in there, one
on each end of the interior.
Thus my guess is that it's a temperature-compensated zener.
In the early '70's I ran the hybrid line at Dickson electronics. The
other line was temperature-compensated zeners.
...Jim Thompson
--
| James E.Thompson | mens |
| Analog Innovations | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| STV, Queen Creek, AZ 85142 Skype: skypeanalog | |
| Voice
480)460-2350 Fax: Available upon request | Brass Rat |
| E-mail Icon at http://www.analog-innovations.com | 1962 |
I'm looking for work... see my website.
<BobEngelhardt@comcast.net> wrote:
Crappy picture but it looks to me like there's two die in there, one
on each end of the interior.
Thus my guess is that it's a temperature-compensated zener.
In the early '70's I ran the hybrid line at Dickson electronics. The
other line was temperature-compensated zeners.
...Jim Thompson
--
| James E.Thompson | mens |
| Analog Innovations | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| STV, Queen Creek, AZ 85142 Skype: skypeanalog | |
| Voice
480)460-2350 Fax: Available upon request | Brass Rat || E-mail Icon at http://www.analog-innovations.com | 1962 |
I'm looking for work... see my website.
T
Tom Biasi
Guest
On 11/20/2016 5:51 PM, Bob Engelhardt wrote:
Poor picture but it could be a germanium glass diode.
Poor picture but it could be a germanium glass diode.
S
Sjouke Burry
Guest
On 20.11.16 23:51, Bob Engelhardt wrote:
H
Helmut Wabnig
Guest
On Sun, 20 Nov 2016 17:37:07 -0800 (PST), "jfeng@my-deja.com"
<jfeng@my-deja.com> wrote:
I read 1N98
http://html.alldatasheet.com/html-pdf/445376/NJSEMI/1N98/213/1/1N98.html
w.
<jfeng@my-deja.com> wrote:
I read 1N98
http://html.alldatasheet.com/html-pdf/445376/NJSEMI/1N98/213/1/1N98.html
w.
H
Helmut Wabnig
Guest
On Sun, 20 Nov 2016 17:37:07 -0800 (PST), "jfeng@my-deja.com"
<jfeng@my-deja.com> wrote:
How to read the bands? I am not sure.
"germanium diode color bands" image search
w.
<jfeng@my-deja.com> wrote:
How to read the bands? I am not sure.
"germanium diode color bands" image search
w.
W
whit3rd
Guest
On Sunday, November 20, 2016 at 2:52:00 PM UTC-8, Bob Engelhardt wrote:
Looks like a germanium diode, 1960-ish vintage. The black band indicates
the cathode, the other two are white and gray, so 1N98, or OA98, or somesuch
number is likely.
Some of these were point contact (the S-shaped thing was holding a pointy against
the semiconductor), and some were alloy (the point was solder-plated and
the solder would alloy with the Ge).
The H logo is familiar, but I can't guess the manufacturer.
Try shining light on it, it's probably slightly photoelectric... expect sensitivity in the IR
Looks like a germanium diode, 1960-ish vintage. The black band indicates
the cathode, the other two are white and gray, so 1N98, or OA98, or somesuch
number is likely.
Some of these were point contact (the S-shaped thing was holding a pointy against
the semiconductor), and some were alloy (the point was solder-plated and
the solder would alloy with the Ge).
The H logo is familiar, but I can't guess the manufacturer.
Try shining light on it, it's probably slightly photoelectric... expect sensitivity in the IR
J
jfeng@my-deja.com
Guest
On Sunday, November 20, 2016 at 10:23:51 PM UTC-8, Helmut Wabnig wrote:
> I read 1N98
Yeah. My fingers slipped a cog when I was thinking about Violet.
I think that, in those days, they built the parts and later assigned the 1Nxx numbers based on the test results.
I am pretty sure that measuring the forward voltage drop and the reverse breakdown voltage will confirm that this is a germanium diode.
> I read 1N98
Yeah. My fingers slipped a cog when I was thinking about Violet.
I think that, in those days, they built the parts and later assigned the 1Nxx numbers based on the test results.
I am pretty sure that measuring the forward voltage drop and the reverse breakdown voltage will confirm that this is a germanium diode.
P
Phil Hobbs
Guest
On 11/20/2016 06:09 PM, Jim Thompson wrote:
measurement would probably tell you.
Cheers
Phil Hobbs
--
Dr Philip C D Hobbs
Principal Consultant
ElectroOptical Innovations LLC
Optics, Electro-optics, Photonics, Analog Electronics
160 North State Road #203
Briarcliff Manor NY 10510
hobbs at electrooptical dot net
http://electrooptical.net
Or maybe a point-contact diode like a 1N34A, 1N38B, or 1N60. A leakage
measurement would probably tell you.
Cheers
Phil Hobbs
--
Dr Philip C D Hobbs
Principal Consultant
ElectroOptical Innovations LLC
Optics, Electro-optics, Photonics, Analog Electronics
160 North State Road #203
Briarcliff Manor NY 10510
hobbs at electrooptical dot net
http://electrooptical.net
C
Cydrome Leader
Guest
whit3rd <whit3rd@gmail.com> wrote:
Some of those glass diodes can act as LEDs too.
Some of those glass diodes can act as LEDs too.
T
Tim Wescott
Guest
On Mon, 21 Nov 2016 21:39:12 +0000, Cydrome Leader wrote:
At least briefly...
--
Tim Wescott
Wescott Design Services
http://www.wescottdesign.com
I'm looking for work -- see my website!
At least briefly...
--
Tim Wescott
Wescott Design Services
http://www.wescottdesign.com
I'm looking for work -- see my website!
T
Tom Biasi
Guest
On 11/21/2016 5:11 PM, Tim Wescott wrote:
T
Tim Wescott
Guest
On Mon, 21 Nov 2016 19:26:59 -0500, Tom Biasi wrote:
Very long in Planck units, very short for a human.
--
Tim Wescott
Wescott Design Services
http://www.wescottdesign.com
I'm looking for work -- see my website!
Very long in Planck units, very short for a human.
--
Tim Wescott
Wescott Design Services
http://www.wescottdesign.com
I'm looking for work -- see my website!
T
Tom Biasi
Guest
On 11/21/2016 7:30 PM, Tim Wescott wrote:
On Mon, 21 Nov 2016 19:26:59 -0500, Tom Biasi wrote:
On 11/21/2016 5:11 PM, Tim Wescott wrote:
On Mon, 21 Nov 2016 21:39:12 +0000, Cydrome Leader wrote:
whit3rd <whit3rd@gmail.com> wrote:
On Sunday, November 20, 2016 at 2:52:00 PM UTC-8, Bob Engelhardt
wrote:
It's 6mm long.
http://imgur.com/a/vg8dM
Looks like a germanium diode, 1960-ish vintage. The black band
indicates the cathode, the other two are white and gray, so 1N98, or
OA98, or somesuch number is likely.
Some of these were point contact (the S-shaped thing was holding a
pointy against the semiconductor), and some were alloy (the point was
solder-plated and the solder would alloy with the Ge).
The H logo is familiar, but I can't guess the manufacturer.
Try shining light on it, it's probably slightly photoelectric...
expect sensitivity in the IR
Some of those glass diodes can act as LEDs too.
At least briefly...
At least a few milliseconds.
Very long in Planck units, very short for a human.
I happen to live in human units.
C
Cydrome Leader
Guest
Tim Wescott <seemywebsite@myfooter.really> wrote:
I've gotten sustained light out of a point diode more than once. It's not
bright, but the die will light up a real deep red, might be mostly IR,
never found a way to test it.
I've gotten sustained light out of a point diode more than once. It's not
bright, but the die will light up a real deep red, might be mostly IR,
never found a way to test it.
D
default
Guest
On Mon, 21 Nov 2016 09:15:29 -0500, Phil Hobbs
<pcdhSpamMeSenseless@electrooptical.net> wrote:
I'd vote for that, since it looks exactly like some I have, and the
cat whisker is a dead give-away.
<pcdhSpamMeSenseless@electrooptical.net> wrote:
I'd vote for that, since it looks exactly like some I have, and the
cat whisker is a dead give-away.
P
Phil Hobbs
Guest
On 11/22/2016 12:01 PM, default wrote:
(How retro--meaningful part labelling!)
Cheers
Phil Hobbs
--
Dr Philip C D Hobbs
Principal Consultant
ElectroOptical Innovations LLC
Optics, Electro-optics, Photonics, Analog Electronics
160 North State Road #203
Briarcliff Manor NY 10510
hobbs at electrooptical dot net
http://electrooptical.net
On Mon, 21 Nov 2016 09:15:29 -0500, Phil Hobbs
pcdhSpamMeSenseless@electrooptical.net> wrote:
On 11/20/2016 06:09 PM, Jim Thompson wrote:
On Sun, 20 Nov 2016 17:51:46 -0500, Bob Engelhardt
BobEngelhardt@comcast.net> wrote:
It's 6mm long.
http://imgur.com/a/vg8dM
Crappy picture but it looks to me like there's two die in there, one
on each end of the interior.
Thus my guess is that it's a temperature-compensated zener.
In the early '70's I ran the hybrid line at Dickson electronics. The
other line was temperature-compensated zeners.
...Jim Thompson
Or maybe a point-contact diode like a 1N34A, 1N38B, or 1N60. A leakage
measurement would probably tell you.
Cheers
Phil Hobbs
I'd vote for that, since it looks exactly like some I have, and the
cat whisker is a dead give-away.
Yup, a 1N98. Helmut actually read the colour code, the cheater.
(How retro--meaningful part labelling!)
Cheers
Phil Hobbs
--
Dr Philip C D Hobbs
Principal Consultant
ElectroOptical Innovations LLC
Optics, Electro-optics, Photonics, Analog Electronics
160 North State Road #203
Briarcliff Manor NY 10510
hobbs at electrooptical dot net
http://electrooptical.net
Guest
On Monday, November 21, 2016 at 2:49:09 AM UTC-5, whit3rd wrote:
I'm guessing "Honeywell". They have had a semiconductor division for many years.
I'm guessing "Honeywell". They have had a semiconductor division for many years.