[time-nuts] tube GPS receivers

[Jim Lux]

On 6/23/13 2:50 PM, Paul Berger wrote:
> Hi:
>
> The SAGE computers, which I had the pleasure of seeing the last two
> operating, had an all vacuum tube array of core that consisted of 33
> planes of 64 x64 cores for about 16K worth of memory.

I was wondering about the Q7.. it was all vacuum tube, but I couldn't 
remember whether it used core or not. I didn't ever see it running, but 
when I worked at SDC in the late 70s as a relative software newbie, many 
of my (older) coworkers had worked on it.