Tubes & Computers of Olden Days
mcguire at neurotica.com
Sun Feb 21 13:05:02 CST 2010
On Feb 21, 2010, at 1:31 PM, Chuck Guzis wrote:
>>> 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?!!
> 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
Wow, a very interesting design.
> 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
I'll look there for schematics.
Port Charlotte, FL
More information about the cctalk