The Apple 1 Computer 1976

Some of these images were obtained from various sources. This site is not affiliated in any way with Apple Computer, Inc. Maintained by John Calande. This BLOG corrects much of the false early history of Apple Computer, Inc. I also show in detail, how to build an Apple 1 clone, and an BASIC expansion card. I work as a Software Engineer. I am always looking for exciting, fun and challenging new projects. You can contact me at jcalande1000 at gmail.com

Friday, April 30, 2010

RS-232 / Keyboard Interface Assembly - Working!

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The image above shows the first sign of life for this PS2 keyboard interface to an Apple-1 Obtronix. It worked the first time, no problems ...
Tuesday, April 20, 2010

RS-232 / Keyboard Interface Assembly

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PS-2/RS232 to ASCII Keyboard Adapter Assembly (designed by Mike Willegal) I spent about an hour assembling the adapter PCB tonite. I took m...
1 comment:
Sunday, April 18, 2010

Completed Mimeo by Cameron Cooper

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Saturday, April 17, 2010

PS2/RS-232 to ASCII Keyboard Adapter cont'd

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After reading the instruction pamphlet, I measured, cut and stripped the jumper wires. I decided I wanted to solder these first, before sol...
Monday, April 12, 2010

PS2/RS-232 to ASCII Keyboard Adapter

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Mike Willegal has done it again. I mentioned awhile back, while working on my A-1 BASIC firmware card, that my Apple II keyboard stopped wo...
Saturday, April 3, 2010

Wow! New Apple-1 Memory Test Utility...

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Can't get into the Monitor? Tired of RAM chip swapping? Check out Mike Willegal's Apple-1 Memory test utility!

Comparison: Mimeo PCB to Obtronix PCB

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Mike Willegal's Mimeo is on the left, underneath Stephen Gabaly's Obtronix board on the right. The inset is an original Apple-1. Asi...

Mike Wllegal's Mimeo

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2 Mimeo boards end to end, front and back.

Obtronix Apple-1 Reproduction Kit Instructions

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These kits came with instruction sheets. My first kit did not, but I was able to find the instructions on the internet. (They were posted ...

Obtronix Apple-1 Active Parts Kit (chips & regulators)

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1 comment:

Obtronix Apple-1 Reproduction Kits

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2 Obtronix kits crammed into one box (as I received them). One bag of parts omitted in the photo as I put them in another box for obvious r...
Wednesday, March 31, 2010

Apple 1 Cassette Interface Kits

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These kits are made by Obtronix. These appear to be very nice quality. I will be replacing the plastic A3 and A4 PROM chips with 6301-1J ce...
Wednesday, March 24, 2010

Another very nice Apple-1 sold on ebay yesterday

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Here is the full description from the auction: Apple 1 - ORIGINAL, with Keyboard, RF Modulator, Cassette Interface Card and Tapes The offe...
Saturday, March 20, 2010

The Mimeo 1 - Mike Willegal's beautiful PCB

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Mike did a beautiful job laying out this board -- based on images of the original Apple-1. This probably wasn't an easy task. Very ni...
5 comments:
Sunday, March 14, 2010

6820 PIA - AMI and other hard-to-find chips from 1976

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UPDATE May.21.2010 - 6820L (A little easier to find than the AMI) 2513 (All of the above are programmed with other-than, Apple-1 character s...
3 comments:

Giant on a board, the Orange 1

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Interface Age, July 1976 (I was tipped off by Cameron Cooper about this article)

The "Woz bible" - Small Computer Handbook 1967

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I'm not 100% sure about this.... but Woz referred to a "book on computers" as his Bible in the 1996 documentary film, "Tr...
Saturday, March 13, 2010

Floppy drive, early (Apple II) schematics, and stuff hand-wired by Woz

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Wendell Sander informs us of some very interesting items going up for sale in the near future, you are not going to want to miss this: ...
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