Need Info on 1 inch CRT
 

I have a 3/4 or perhaps 1" CRT. Possibly from a camcorder, don't know.
Haven't been able to find anything. The wearable computer sites may be a
possibility, but I didn't see any leads so far. I want to use it for a
portable DF system.
The number is unreadable. It has yellow ink printing not etched. What
could be the manufacturer: an "N" followed by what looks like a backwards
somewhat stylized "B" What there is of a number looks like R2 then possibly
a 1 and most likely a 5. So it sort-of looks like R215, but much of the ink
is gone. Standard 9 pin. Pins 4-5 must be the filament since they show 4
ohms cold. about 1" dia & 2" long. How about some ideas???

--
Steve N, K,9,d, c. i at arrl net will reach me, no commas, of course.

Steve Nosko wrote:

I have a 3/4 or perhaps 1" CRT. Possibly from a camcorder, don't know.
Haven't been able to find anything. The wearable computer sites may be a
possibility, but I didn't see any leads so far. I want to use it for a
portable DF system.
The number is unreadable. It has yellow ink printing not etched. What
could be the manufacturer: an "N" followed by what looks like a backwards
somewhat stylized "B" What there is of a number looks like R2 then possibly
a 1 and most likely a 5. So it sort-of looks like R215, but much of the ink
is gone. Standard 9 pin. Pins 4-5 must be the filament since they show 4
ohms cold. about 1" dia & 2" long. How about some ideas???

--
Steve N, K,9,d, c. i at arrl net will reach me, no commas, of course.

If it is from a camcorder, it should have a deflection yoke. How
about some pictures? It might trigger someone to recognize it.

Suitable newsgroups a
news:alt.binaries.schematics.electronic
news:alt.binaries.pictures.radio

Also, you can lay small parts on a flatbed scanner, cover them with a
sheet of white paper, and put a light over the paper to reduce shadows.
Yo can get good close-ups this way. I usually scan at 600 DPI, and
reduce image size to what I want. I would post a picture, an ask the
guys on news:sci.electronics.repair if anyone there can identify it.

--
We now return you to our normally scheduled programming.

Take a look at this little cutie! ;-)
http://home.earthlink.net/~mike.terrell/photos.html

Michael A. Terrell
Central Florida

Steve Nosko wrote:

I have a 3/4 or perhaps 1" CRT. Possibly from a camcorder, don't know.
Haven't been able to find anything. The wearable computer sites may be a
possibility, but I didn't see any leads so far. I want to use it for a
portable DF system.
The number is unreadable. It has yellow ink printing not etched. What
could be the manufacturer: an "N" followed by what looks like a backwards
somewhat stylized "B" What there is of a number looks like R2 then possibly
a 1 and most likely a 5. So it sort-of looks like R215, but much of the ink
is gone. Standard 9 pin. Pins 4-5 must be the filament since they show 4
ohms cold. about 1" dia & 2" long. How about some ideas???

--
Steve N, K,9,d, c. i at arrl net will reach me, no commas, of course.

If it is from a camcorder, it should have a deflection yoke. How
about some pictures? It might trigger someone to recognize it.

Suitable newsgroups a
news:alt.binaries.schematics.electronic
news:alt.binaries.pictures.radio

Also, you can lay small parts on a flatbed scanner, cover them with a
sheet of white paper, and put a light over the paper to reduce shadows.
Yo can get good close-ups this way. I usually scan at 600 DPI, and
reduce image size to what I want. I would post a picture, an ask the
guys on news:sci.electronics.repair if anyone there can identify it.

--
We now return you to our normally scheduled programming.

Take a look at this little cutie! ;-)
http://home.earthlink.net/~mike.terrell/photos.html

Michael A. Terrell
Central Florida

P.S. Do the camcorders really use magnetic deflection???

Steve

"Steve Nosko" wrote in message
...
Don't think a pix will help much. It has what looks like the dark grey
aquadag coating making any internal observations impossible. My sacnner
out
of commission, but there's one at work. I should try to see if I can get
a
good rendition of the printing though. Thanks.
Steve

"Michael A. Terrell" wrote in message
...
Steve Nosko wrote:

I have a 3/4 or perhaps 1" CRT. Possibly from a camcorder, don't
know.
Haven't been able to find anything. The wearable computer sites may
be
a
possibility, but I didn't see any leads so far. I want to use it for
a
portable DF system.
The number is unreadable. It has yellow ink printing not etched.
What
could be the manufacturer: an "N" followed by what looks like a
backwards
somewhat stylized "B" What there is of a number looks like R2 then
possibly
a 1 and most likely a 5. So it sort-of looks like R215, but much of
the
ink
is gone. Standard 9 pin. Pins 4-5 must be the filament since they
show
4
ohms cold. about 1" dia & 2" long. How about some ideas???

--
Steve N, K,9,d, c. i at arrl net will reach me, no commas, of
course.

If it is from a camcorder, it should have a deflection yoke. How
about some pictures? It might trigger someone to recognize it.

Suitable newsgroups a
news:alt.binaries.schematics.electronic
news:alt.binaries.pictures.radio

Also, you can lay small parts on a flatbed scanner, cover them with a
sheet of white paper, and put a light over the paper to reduce shadows.
Yo can get good close-ups this way. I usually scan at 600 DPI, and
reduce image size to what I want. I would post a picture, an ask the
guys on news:sci.electronics.repair if anyone there can identify it.

--
We now return you to our normally scheduled programming.

Take a look at this little cutie! ;-)
http://home.earthlink.net/~mike.terrell/photos.html

Michael A. Terrell
Central Florida

P.S. Do the camcorders really use magnetic deflection???

Steve

"Steve Nosko" wrote in message
...
Don't think a pix will help much. It has what looks like the dark grey
aquadag coating making any internal observations impossible. My sacnner
out
of commission, but there's one at work. I should try to see if I can get
a
good rendition of the printing though. Thanks.
Steve

"Michael A. Terrell" wrote in message
...
Steve Nosko wrote:

I have a 3/4 or perhaps 1" CRT. Possibly from a camcorder, don't
know.
Haven't been able to find anything. The wearable computer sites may
be
a
possibility, but I didn't see any leads so far. I want to use it for
a
portable DF system.
The number is unreadable. It has yellow ink printing not etched.
What
could be the manufacturer: an "N" followed by what looks like a
backwards
somewhat stylized "B" What there is of a number looks like R2 then
possibly
a 1 and most likely a 5. So it sort-of looks like R215, but much of
the
ink
is gone. Standard 9 pin. Pins 4-5 must be the filament since they
show
4
ohms cold. about 1" dia & 2" long. How about some ideas???

--
Steve N, K,9,d, c. i at arrl net will reach me, no commas, of
course.

If it is from a camcorder, it should have a deflection yoke. How
about some pictures? It might trigger someone to recognize it.

Suitable newsgroups a
news:alt.binaries.schematics.electronic
news:alt.binaries.pictures.radio

Also, you can lay small parts on a flatbed scanner, cover them with a
sheet of white paper, and put a light over the paper to reduce shadows.
Yo can get good close-ups this way. I usually scan at 600 DPI, and
reduce image size to what I want. I would post a picture, an ask the
guys on news:sci.electronics.repair if anyone there can identify it.

--
We now return you to our normally scheduled programming.

Take a look at this little cutie! ;-)
http://home.earthlink.net/~mike.terrell/photos.html

Michael A. Terrell
Central Florida

Steve Nosko wrote:

P.S. Do the camcorders really use magnetic deflection???

Steve

I have a Sanyo laying here, apart, and it does. I am trying to find
the lens control circuits so I can mount a small CCD camera to it, and
use it to magnify what I am working on. The CRT has a seven pin base,
and a second anode connector on the side of the bell.

Your CRT would need four more terminals for electrostatic deflection,
and four output transistors to drive it. Since the tubes are small, and
run at fixed sweep frequencies, using magnetic deflection makes more
sense.

--
We now return you to our normally scheduled programming.

Take a look at this little cutie! ;-)
http://home.earthlink.net/~mike.terrell/photos.html

Michael A. Terrell
Central Florida

Steve Nosko wrote:

P.S. Do the camcorders really use magnetic deflection???

Steve

I have a Sanyo laying here, apart, and it does. I am trying to find
the lens control circuits so I can mount a small CCD camera to it, and
use it to magnify what I am working on. The CRT has a seven pin base,
and a second anode connector on the side of the bell.

Your CRT would need four more terminals for electrostatic deflection,
and four output transistors to drive it. Since the tubes are small, and
run at fixed sweep frequencies, using magnetic deflection makes more
sense.

--
We now return you to our normally scheduled programming.

Take a look at this little cutie! ;-)
http://home.earthlink.net/~mike.terrell/photos.html

Michael A. Terrell
Central Florida

"Michael A. Terrell" wrote in message
...
If it is from a camcorder, it should have a deflection yoke. How
about some pictures? It might trigger someone to recognize it.

Suitable newsgroups a
news:alt.binaries.schematics.electronic
news:alt.binaries.pictures.radio

Also, you can lay small parts on a flatbed scanner, cover them with a
sheet of white paper, and put a light over the paper to reduce shadows.
Yo can get good close-ups this way. I usually scan at 600 DPI, and
reduce image size to what I want. I would post a picture, an ask the
guys on news:sci.electronics.repair if anyone there can identify it.

--
We now return you to our normally scheduled programming.

Take a look at this little cutie! ;-)
http://home.earthlink.net/~mike.terrell/photos.html

Michael A. Terrell
Central Florida

Many early systems used separate cameras and a suitcase
VCR. My RCA camera had a removable viewfinder which
used a minature CRT with a yoke.

Pete

"Michael A. Terrell" wrote in message
...
If it is from a camcorder, it should have a deflection yoke. How
about some pictures? It might trigger someone to recognize it.

Suitable newsgroups a
news:alt.binaries.schematics.electronic
news:alt.binaries.pictures.radio

Also, you can lay small parts on a flatbed scanner, cover them with a
sheet of white paper, and put a light over the paper to reduce shadows.
Yo can get good close-ups this way. I usually scan at 600 DPI, and
reduce image size to what I want. I would post a picture, an ask the
guys on news:sci.electronics.repair if anyone there can identify it.

--
We now return you to our normally scheduled programming.

Take a look at this little cutie! ;-)
http://home.earthlink.net/~mike.terrell/photos.html

Michael A. Terrell
Central Florida

Many early systems used separate cameras and a suitcase
VCR. My RCA camera had a removable viewfinder which
used a minature CRT with a yoke.

Pete

The 913 is a 1" electrostatic CRT. It looks like a metal 6L6 with a glass
end, IIRC.










(running an hiding to avoid flames)