Thanks for all the help..
I also found this on an old schematic where they show a 1 meg resistor
across the 3 & 7.
pin 3 cathode
pin 7 anode

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73
Hank WD5JFR

"Richard Knoppow" wrote in message
...

"gudmundur" wrote in message
...
In article ,
says...

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

Everyone replies, and yet you get no answers,

R-1131C,D
Max dcv 150
ma. 3-25
peak ma. 55
starting voltage 225
crater dia. .093
candelpower .2@25 ma.
light color white

What is the pin arrangement?


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Richard Knoppow
Los Angeles, CA, USA