[time-nuts] tube GPS receivers
Lee Mushel
herbert3 at centurytel.net
Mon Jun 24 10:32:50 EDT 2013
Boy, are you bringing back memories and you made me look to see that my
collection of odd old stuff wasn't damaged by the recent flooding we've had.
I know that I have a "64" bit handwired memory board and I couldn't find
that but did stir up a Fabri-Tek board that I think was 64 K but that was an
entirely different generation. I did get to tour the SAGE system computer
at Madison's Truax Field in 1958. They had the loudspeaker on so you could
hear the computer work. A monster pile of vaccuum tubes!
Lee K9WRU
----- Original Message -----
From: "Jim Lux" <jimlux at earthlink.net>
To: <time-nuts at febo.com>
Sent: Sunday, June 23, 2013 7:44 PM
Subject: Re: [time-nuts] tube GPS receivers
> On 6/23/13 10:47 AM, Chris Albertson wrote:
>> Magnetic cores were not invented until the 1950's and realy cam into use
>> as
>> tubes were beibg replaced by SS. But there isnot reason yu can't build a
>> tube computer with core memory. I have actually seen and used a
>> computer
>> that had one megabyte of core memory. The stuff was still in use in the
>> late 1970s 1MB was a lot of RAM in 1975.
>>
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