March 16th 08, 11:21 AM
posted to rec.radio.amateur.boatanchors,rec.antiques.radio+phono,rec.radio.amateur.homebrew,sci.electronics.design
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First recorded activity by RadioBanter: Nov 2006
Posts: 18
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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
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