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

"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)

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










(running an hiding to avoid flames)

OK This is an all glass, flat-end envelope. Not much larger than a 50C5,
but a bit larger. Coated, can't see inside.
Yikes! they actually used magnetic deflection. I was hoping for
electrostatic, but with 9 pins that may be difficult. Been too long to
remember how many electrodes are needed for grid, focus & any more anodes.
Leseee.
2 fil
1-cathode.
4- dif plates
1-focus
1- accel anode

That's 9......maybe you need more...Oops, forgot the grid. Make the cathode
common with one of the filament lines or make it directly heated.......Oh
well. If it needs coils it'll make a nice conversation piece.

73, Steve

" Uncle Peter" wrote in message
news:4hWLb.29705$WQ3.6987@lakeread05...

"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

OK This is an all glass, flat-end envelope. Not much larger than a 50C5,
but a bit larger. Coated, can't see inside.
Yikes! they actually used magnetic deflection. I was hoping for
electrostatic, but with 9 pins that may be difficult. Been too long to
remember how many electrodes are needed for grid, focus & any more anodes.
Leseee.
2 fil
1-cathode.
4- dif plates
1-focus
1- accel anode

That's 9......maybe you need more...Oops, forgot the grid. Make the cathode
common with one of the filament lines or make it directly heated.......Oh
well. If it needs coils it'll make a nice conversation piece.

73, Steve

" Uncle Peter" wrote in message
news:4hWLb.29705$WQ3.6987@lakeread05...

"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

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