20 Apr
2005
20 Apr
'05
7:45 a.m.
Wai-Sun Chia wrote:
Wow. That is sooo coool...
What other pseudo-SSI tubes exist/existed? I mean for higher-level
functions; e.g. adders, counters, flipflops, decoders,....(TTL
equivalents).
Now if you want analog -- 1926 was good year. :)
http://www.oldradioworld.de/3nf.htm