Hello everybody!
I'm Duncan, an American software engineer by day and vacuum tube
enthusiast when I'm not distracted by other things. I have an unreasonable
number of pokers in the fire right now, but they include:
* a clock based on each of J.B. Dance's Electronic Counting Circuits
chapters (how low can I get the active part count without involving
silicon components?)
* tuning fork timebase for the above clocks
* 1j24b (Russian subminiature rod pentode) CPU
* 1j25r (even smaller than 1j24b) headphone amplifier
In particular, I'm interested in hearing from the experts what kind of fun
tube-based displays I might've overlooked for the 1j24b CPU. My current
plan is 5971 13-segment tubes (I'm too poor for that many 7971s), but I
don't really know what's out there.
===
I'm also interested in trading to get some of the tubes I admire for their
aesthetics. I consider the National NL-90X series (NL-900 no decimal,
NL-901 left decimal, NL-902 right decimal, NL-908 both decimals) as well
as the Ericsson GR10N tubes some of the most beautiful ever manufactured
and would love to trade for/buy some. I have a large number of enormous
ICL1-1/7 VFDs as well as some tiny National NL-4998 nixies for trade. I
also have the above mentioned sub-subminiature Russian tubes (1c38a
triode, 1c38a-q Chinese variant triode, 1j25r pentodes, and tg5r
thyratron) as well as their slightly less sub- brethren (1c1a triode,
06p1a pentode, 1t1a thyratron) for anyone who wants to build out their
collection of oddities.
--Duncan
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