E.I. Homebuilt Computer (was Re: "Single instance" machines)

From: dave dameron <ddameron_at_earthlink.net>
Date: Thu Dec 10 12:37:54 1998

Hi Aaron and all,
At 01:57 AM 12/10/98 -0800, you wrote:

>> > And the 1/3 part is in the form of the "electronic" computer I'm building
>> > from the January 1960 issue of Electronics Illustrated...(flip-flops,
>> > light-bulbs, and a rotary phone dial - woo-hoo!) I'm about 1/3
>> > completed...
>>
>> One of my favorite early personal computers! I regret that the designer
>> didn't give it a name, though. Specs:
>>
>> Name: "Electronic Computer"
>> Intro: Jan 1960

>Did you actually build one of these? I was thinking of taking the author's
>suggestion and upgrading the memory to 10 bits...
>
>Do you have the magazine? If you don't, and get around to putting up a web
>page, I'll gladly scan the article to put on it. Actually, if anyone else
>is interested, I could scan it and make it available for anyone who want's
>to hack around on it. Pretty cool, actually.
>
I would be interested in the article. I built the later one (E.I., about
1966) with 60 neon lamps as 6 decade shift register/counters and a rotary
telephone dial. This one used 3 12AU7/ECC82 as 6 buffer amps. The diodes in
it I used were from scrapped IBM assemblies. I still have some 6V lamps in
orange plastic holders from the same scrapyard, used on some IBM panels.
-Dave
Received on Thu Dec 10 1998 - 12:37:54 GMT