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Radio Man
Guest
Where in the states can i purchase germanium 1N23 diodes?
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W
Watson A.Name - \"Watt Su
Guest
"Radio Man" <puns@verizon.net> wrote in message
news:Qb_Dd.1176$C.184@trnddc05...
microwave package that is meant to be inserted into a waveguide, to be
used as a detector. Are you sure this is what you want?
Most UHF diodes such as the 1N5711 schottky diode would work okay for
detecting RF or whatever. Easier than using a 1N23.
news:Qb_Dd.1176$C.184@trnddc05...
First off, as far as I know, they're silicon. And they come in aWhere in the states can i purchase germanium 1N23 diodes?
microwave package that is meant to be inserted into a waveguide, to be
used as a detector. Are you sure this is what you want?
Most UHF diodes such as the 1N5711 schottky diode would work okay for
detecting RF or whatever. Easier than using a 1N23.
T
Tim Wescott
Guest
Watson A.Name - "Watt Sun, the Dark Remover" wrote:
And with that package, if it's what you need it's all that'll do, unless
there's a hot-carrier diode that's been made to be compatible.
--
Tim Wescott
Wescott Design Services
http://www.wescottdesign.com
diodes, used in some (if not all) WWII radar sets."Radio Man" <puns@verizon.net> wrote in message
news:Qb_Dd.1176$C.184@trnddc05...
Where in the states can i purchase germanium 1N23 diodes?
First off, as far as I know, they're silicon. And they come in a
microwave package that is meant to be inserted into a waveguide, to be
used as a detector. Are you sure this is what you want?
Most UHF diodes such as the 1N5711 schottky diode would work okay for
detecting RF or whatever. Easier than using a 1N23.
With a two digit number after the '1N'? They're Germanium point-contact
And with that package, if it's what you need it's all that'll do, unless
there's a hot-carrier diode that's been made to be compatible.
--
Tim Wescott
Wescott Design Services
http://www.wescottdesign.com
Guest
We have a lot of them in stock - the 1N23G models. How many
do you want?
On Sat, 08 Jan 2005 23:40:32 GMT, "Radio Man" <puns@verizon.net>
wrote:
do you want?
On Sat, 08 Jan 2005 23:40:32 GMT, "Radio Man" <puns@verizon.net>
wrote:
Where in the states can i purchase germanium 1N23 diodes?
J
Jerry G.
Guest
I think a 1N64 and a 1N34 may work for you. These can still be found. It may
be worth a try.
--
Jerry G.
=====
"Radio Man" <puns@verizon.net> wrote in message
news:Qb_Dd.1176$C.184@trnddc05...
Where in the states can i purchase germanium 1N23 diodes?
be worth a try.
--
Jerry G.
=====
"Radio Man" <puns@verizon.net> wrote in message
news:Qb_Dd.1176$C.184@trnddc05...
Where in the states can i purchase germanium 1N23 diodes?
C
Clarence_A
Guest
"Jerry G." <jerryg50@hotmail.com> wrote in message
news:34q79gF4dh1rqU2@uni-berlin.de...
used as a mixer. The case is different too.
news:34q79gF4dh1rqU2@uni-berlin.de...
A 1n23 is a UHF mixer. I have never seen a 1N34 (or 1N64, 1N128)I think a 1N64 and a 1N34 may work for you. These can still be
found. It may
be worth a try.
--
Jerry G.
=====
"Radio Man" <puns@verizon.net> wrote in message
news:Qb_Dd.1176$C.184@trnddc05...
Where in the states can i purchase germanium 1N23 diodes?
used as a mixer. The case is different too.
W
Watson A.Name - \"Watt Su
Guest
"Clarence_A" <no@No.com> wrote in message
news:23UFd.1751$8Z1.605@newssvr14.news.prodigy.com...
lead protruding into the LO circuit as a half turn coil to pick up the
mixer current.
news:23UFd.1751$8Z1.605@newssvr14.news.prodigy.com...
I've seen many tuners where the mixer diode, a 1N34 or 1N60, has its"Jerry G." <jerryg50@hotmail.com> wrote in message
news:34q79gF4dh1rqU2@uni-berlin.de...
I think a 1N64 and a 1N34 may work for you. These can still be
found. It may
be worth a try.
--
Jerry G.
=====
"Radio Man" <puns@verizon.net> wrote in message
news:Qb_Dd.1176$C.184@trnddc05...
Where in the states can i purchase germanium 1N23 diodes?
A 1n23 is a UHF mixer. I have never seen a 1N34 (or 1N64, 1N128)
used as a mixer. The case is different too.
lead protruding into the LO circuit as a half turn coil to pick up the
mixer current.
C
Clarence_A
Guest
"Watson A.Name - wrote
switching diodes, but there are lots of amateur circuits that do.
The 1N23 I believe is in a cartridge case, and to fit the clip
mount it would need to be pretty close.
Brad KG6IOE said in 2003 that he had a number of them. The OP
might try contacting him to see if he can spare a couple.
Additional data:
"The 1N23x family of diodes are point-contact silicon diodes
designed for
X-band (10 GHz) mixer service. The 1N23C presents a 6 dB
conversion loss and a "maximum noise output ratio" of 2, whatever
that means! IIRC, these diodes were developed late in World War II
and saw service well into the 1960s. The 1N23D has lowest noise. "
"I haven't looked at the specs for these in a long time, but the
1N23 is
probably also useful as a harmonic generator and general-purpose
RF detector. Don't apply a lot of reverse voltage or forward
current, though. "
Just some data I found. I have never used this diode!
Clarence_A
I am not personally aware of any commercial units for UHF that use"Clarence_A" <no@No.com> wrote in message
"Jerry G." <jerryg50@hotmail.com> wrote in message
I think a 1N64 and a 1N34 may work for you. These can still
be
found. It may be worth a try.
Jerry G.
=====
"Radio Man" <puns@verizon.net> wrote in message
news:Qb_Dd.1176$C.184@trnddc05...
Where in the states can i purchase germanium 1N23 diodes?
A 1n23 is a UHF mixer. I have never seen a 1N34 (or 1N64,
1N128)
used as a mixer. The case is different too.
I've seen many tuners where the mixer diode, a 1N34 or 1N60, has
its
lead protruding into the LO circuit as a half turn coil to pick
up the
mixer current.
switching diodes, but there are lots of amateur circuits that do.
The 1N23 I believe is in a cartridge case, and to fit the clip
mount it would need to be pretty close.
Brad KG6IOE said in 2003 that he had a number of them. The OP
might try contacting him to see if he can spare a couple.
Additional data:
"The 1N23x family of diodes are point-contact silicon diodes
designed for
X-band (10 GHz) mixer service. The 1N23C presents a 6 dB
conversion loss and a "maximum noise output ratio" of 2, whatever
that means! IIRC, these diodes were developed late in World War II
and saw service well into the 1960s. The 1N23D has lowest noise. "
"I haven't looked at the specs for these in a long time, but the
1N23 is
probably also useful as a harmonic generator and general-purpose
RF detector. Don't apply a lot of reverse voltage or forward
current, though. "
Just some data I found. I have never used this diode!
Clarence_A
W
Watson A.Name - \"Watt Su
Guest
"Clarence_A" <no@No.com> wrote in message
news:Q29Gd.10747$wZ2.2530@newssvr13.news.prodigy.com...
and found them. The pair comes in a 2" long cardboard tube covered with
aluminum foil, and there are two aluminum caps, one on each end. One
one end is a 1N23E, and the other end has a 1N23ER which has reverse
polarity. They were meant to be used in pairs in radar detectors. I
remember the radars I worked on had them in an assembly in the
waveguide, with the T-R tube to prevent the Tx power from zapping them.
I checked one with a dmm and they have a forward voltage drop of about
..3V, so as someone said, they're apparently germanium. The reverse
leakage current is much greater than the usual germanium diode, which is
poor compared to a silicon. So they aren't a very good diode, but okay
for a detector. Of course they're point contact, and probably 40 years
or more old...
news:Q29Gd.10747$wZ2.2530@newssvr13.news.prodigy.com...
I have a couple pairs of them. I finally dug around in the junk boxes"Watson A.Name - wrote
"Clarence_A" <no@No.com> wrote in message
"Jerry G." <jerryg50@hotmail.com> wrote in message
I think a 1N64 and a 1N34 may work for you. These can still
be
found. It may be worth a try.
Jerry G.
=====
"Radio Man" <puns@verizon.net> wrote in message
news:Qb_Dd.1176$C.184@trnddc05...
Where in the states can i purchase germanium 1N23 diodes?
A 1n23 is a UHF mixer. I have never seen a 1N34 (or 1N64,
1N128)
used as a mixer. The case is different too.
I've seen many tuners where the mixer diode, a 1N34 or 1N60, has
its
lead protruding into the LO circuit as a half turn coil to pick
up the
mixer current.
I am not personally aware of any commercial units for UHF that use
switching diodes, but there are lots of amateur circuits that do.
The 1N23 I believe is in a cartridge case, and to fit the clip
mount it would need to be pretty close.
Brad KG6IOE said in 2003 that he had a number of them. The OP
might try contacting him to see if he can spare a couple.
and found them. The pair comes in a 2" long cardboard tube covered with
aluminum foil, and there are two aluminum caps, one on each end. One
one end is a 1N23E, and the other end has a 1N23ER which has reverse
polarity. They were meant to be used in pairs in radar detectors. I
remember the radars I worked on had them in an assembly in the
waveguide, with the T-R tube to prevent the Tx power from zapping them.
I checked one with a dmm and they have a forward voltage drop of about
..3V, so as someone said, they're apparently germanium. The reverse
leakage current is much greater than the usual germanium diode, which is
poor compared to a silicon. So they aren't a very good diode, but okay
for a detector. Of course they're point contact, and probably 40 years
or more old...
Additional data:
"The 1N23x family of diodes are point-contact silicon diodes
designed for
X-band (10 GHz) mixer service. The 1N23C presents a 6 dB
conversion loss and a "maximum noise output ratio" of 2, whatever
that means! IIRC, these diodes were developed late in World War II
and saw service well into the 1960s. The 1N23D has lowest noise. "
"I haven't looked at the specs for these in a long time, but the
1N23 is
probably also useful as a harmonic generator and general-purpose
RF detector. Don't apply a lot of reverse voltage or forward
current, though. "
Just some data I found. I have never used this diode!
Clarence_A