I notice in the Burroughs Bulletin N101 Nick posted that the block diagram
on page 2 shows a core memory! Reference in the text to the recirculation
loop leaves no doubt. I'm curious to know if anyone has ever seen a Nixie
instrument with a core memory? Presumably they must have existed
I do recall, however, that one of the Anita nixie calculators had a magnetic
memory - a torsion delay line. It was kind of like a clock spring made out of
stiff wire. An actuator would twist it at one end and the torsion wave would
go round all the coils and appear at the other end some
Were the CRT calculators Busicom?
One of those was the first thing I ever programmed... Punch cards with an
instruction rate of ten per second!
I seem to recall it had a magnetostrictive coil memory, an acoustic delay line
using wire that behaves like piezo electric stuff does but with
Were the CRT calculators Busicom?
No, one was a Singer/Frieden, the other was something else (but I don't think
it was Busicom).
One of those was the first thing I ever programmed... Punch cards with an
instruction rate of ten per second!
These weren't programmable, just add, subtract,
Interesting, do You know which nixie tubes were doped with radioactive krypton?
I like especially the content section which occupies a quarter of one page ;-)
Dalibor
2014-02-06 10:44 GMT+01:00 Nick n...@desmith.net:
Bell Systems Practice document #024-723-801-I2, February 1983
Nick
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