Sylvania R1131C octal tube ?
 

I got a couple of the subject tubes which are supposed to be "glow
modulator tubes". Best I can determine is that the light output will
vary with current but I can't find data sheet googling. If anyone has
pinout and/or data I'd sure like to see it. I think it might be a mid
1960s item as my 1957 Sylvania manual doesn't show it.
thanks

--

73
Hank WD5JFR

Sylvania R1131C octal tube ?
 

"Henry Kolesnik" wrote in
message
. net...
I got a couple of the subject tubes which are supposed to
be "glow modulator tubes". Best I can determine is that
the light output will vary with current but I can't find
data sheet googling. If anyone has pinout and/or data I'd
sure like to see it. I think it might be a mid 1960s item
as my 1957 Sylvania manual doesn't show it.
thanks

--

73
Hank WD5JFR
Google is your friend. See:
http://www.radiomuseum.org/tubes/tube_r1131c.html for a
little information. Unfortunately they require a membership
fee to download the datasheet illustrated.
Evidently these tubes were orginally used for early
facsimile machines (the sort used to send newspaper wire
photos) but the search shows it was also used extensively in
vision research.
Perhaps someone knows of a better source for the
datasheet.


--
---
Richard Knoppow
Los Angeles, CA, USA

Sylvania R1131C octal tube ?
 

Henry Kolesnik wrote:
I got a couple of the subject tubes which are supposed to be "glow
modulator tubes". Best I can determine is that the light output will
vary with current but I can't find data sheet googling. If anyone has
pinout and/or data I'd sure like to see it. I think it might be a mid
1960s item as my 1957 Sylvania manual doesn't show it.
thanks

I have a Sylania Technical Manual of tube data sheets dated 1959 and
have the blue add-ons to 1960, and that tube is not listed anywhere in it.
Sorry.

Sylvania R1131C octal tube ?
 

Google "crater lamp"

--
Mike Schultz


"Henry Kolesnik" wrote in message
. net...
I got a couple of the subject tubes which are supposed to be "glow
modulator tubes". Best I can determine is that the light output will vary
with current but I can't find data sheet googling. If anyone has pinout
and/or data I'd sure like to see it. I think it might be a mid 1960s item
as my 1957 Sylvania manual doesn't show it.
thanks

--

73
Hank WD5JFR

Sylvania R1131C octal tube ?
 

Henry Kolesnik wrote:
I got a couple of the subject tubes which are supposed to be "glow
modulator tubes". Best I can determine is that the light output will
vary with current but I can't find data sheet googling. If anyone has
pinout and/or data I'd sure like to see it. I think it might be a mid
1960s item as my 1957 Sylvania manual doesn't show it.
thanks

Sounds like what we used to call "crater" (sp?) tubes and were used in
NOAA weather satellite optical printers for APT data in the 80's.
Muirhead (UK) was the mfgr. of the receiver/printer units. I simply
don't recall who mfg the tubes, though. They were octal based, however.

Sylvania R1131C octal tube ?
 

K3HVG wrote:
Henry Kolesnik wrote:
I got a couple of the subject tubes which are supposed to be "glow
modulator tubes". Best I can determine is that the light output will
vary with current but I can't find data sheet googling. If anyone has
pinout and/or data I'd sure like to see it. I think it might be a mid
1960s item as my 1957 Sylvania manual doesn't show it.
thanks

Sounds like what we used to call "crater" (sp?) tubes and were used in
NOAA weather satellite optical printers for APT data in the 80's.
Muirhead (UK) was the mfgr. of the receiver/printer units. I simply
don't recall who mfg the tubes, though. They were octal based, however.

Yes, it's definitely a crater tube. I don't have a data sheet on that
one, but I have the phototube volume of the RCA HB-3 which has some other
more or less similar crater tubes listed. The data sheet has a chart of
light output vs. current and it's not very linear, but it tries to be.

They were used in some early computer plotters and in a bunch of chart
recorders as well.
--scott
--
"C'est un Nagra. C'est suisse, et tres, tres precis."

Sylvania R1131C octal tube ?
 

I just posted a pic of them to alt.binaries.pictures.radio
Hank
"Scott Dorsey" wrote in message
...
K3HVG wrote:
Henry Kolesnik wrote:
I got a couple of the subject tubes which are supposed to be "glow
modulator tubes". Best I can determine is that the light output
will
vary with current but I can't find data sheet googling. If anyone
has
pinout and/or data I'd sure like to see it. I think it might be a
mid
1960s item as my 1957 Sylvania manual doesn't show it.
thanks

Sounds like what we used to call "crater" (sp?) tubes and were used in
NOAA weather satellite optical printers for APT data in the 80's.
Muirhead (UK) was the mfgr. of the receiver/printer units. I simply
don't recall who mfg the tubes, though. They were octal based,
however.

Yes, it's definitely a crater tube. I don't have a data sheet on that
one, but I have the phototube volume of the RCA HB-3 which has some
other
more or less similar crater tubes listed. The data sheet has a chart
of
light output vs. current and it's not very linear, but it tries to be.

They were used in some early computer plotters and in a bunch of chart
recorders as well.
--scott
--
"C'est un Nagra. C'est suisse, et tres, tres precis."

Sylvania R1131C octal tube ?
 

The octal socket and mounting bracket are separate items.
"Jim Menning" wrote in message
...

"Henry Kolesnik" wrote in message
...

I just posted a pic of them to alt.binaries.pictures.radio
Hank



It's also got a very interesting mounting collar on it. Is that part
of the tube socket, or completely separate from it?

Sylvania R1131C octal tube ?
 

"Robert Baer" wrote in message ...
Henry Kolesnik wrote:
I got a couple of the subject tubes which are supposed to be "glow modulator tubes". Best I can determine is that the
light output will vary with current but I can't find data sheet googling. If anyone has pinout and/or data I'd sure like
to see it. I think it might be a mid 1960s item as my 1957 Sylvania manual doesn't show it.
thanks

I have a Sylania Technical Manual of tube data sheets dated 1959 and have the blue add-ons to 1960, and that tube is not
listed anywhere in it.
Sorry.

Hi Robert,

I have some PDF's of scanned tube manuals(Eimac, Taylor RCA), I would love to trade a few for a pdf of the Sylvania Manuals.
If interested email me.

Cheers

Sylvania R1131C octal tube ?
 

"Martin Riddle" wrote in message
news:PjEDj.2253$jw2.67@trndny04...

"Robert Baer" wrote in message
...
Henry Kolesnik wrote:
I got a couple of the subject tubes which are supposed
to be "glow modulator tubes". Best I can determine is
that the light output will vary with current but I can't
find data sheet googling. If anyone has pinout and/or
data I'd sure like to see it. I think it might be a mid
1960s item as my 1957 Sylvania manual doesn't show it.
thanks

I have a Sylania Technical Manual of tube data sheets
dated 1959 and have the blue add-ons to 1960, and that
tube is not listed anywhere in it.
Sorry.

Hi Robert,

I have some PDF's of scanned tube manuals(Eimac, Taylor
RCA), I would love to trade a few for a pdf of the
Sylvania Manuals. If interested email me.

Cheers

There is a Sylvania tube manual on-line at:
http://www.pmillett.com/sylvania_tub...als_online.htm

However, it does not cover the R1131C

Lots of other good stuff on this site including several
RCA tube manuals and many books. All in PDF form but _very_
large files.


--
---
Richard Knoppow
Los Angeles, CA, USA