21 Feb
2010
21 Feb
'10
11:05 a.m.
On Feb 21, 2010, at 1:31 PM, Chuck Guzis wrote:
Yup, 6 of them, I seem to recall. In the type of logic used by the
SS machines, it's the clock that furnishes all of the power for
logic.
Wow, a very interesting design.
Isn't there a Univac SS80 in Germany in private
hands? The guy used
to have a web site, but I can't find it. Magnetic core logic, but
the clock driver uses a bunch of 4X150s and ISTR that the printer
uses thyratrons. It was operational.
4X150s as clock drivers?!! I think the 4X150s are driven by 6146s.
...both of which I used as a kid as ham-band output stages! Scary!
There are some good SS docs on bitsavers if you're
curious about the
machine. In the days of vacuum-tube systems, it was noted for its
reliability. Transistor logic eventually rendered the technology
obsolote.
I'll look there for schematics.
-Dave
--
Dave McGuire
Port Charlotte, FL