Saturday, February 13, 2010

September 1976 Issue of Interface Age

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The famous advertisement for the Apple 1 first appeared in the September 1976 issue of Interface Age, not the October issue as is widely be...
1 comment:

More info on the datanetics keyboard

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Wendell Sander informed me today that he believes the first Apple II keyboards may have been manufactured for Apple, by Datanetics, Inc. He...
1 comment:
Wednesday, February 10, 2010

Datanetics Keyboard V

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Datanetics Keyboard IV

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Datanetics Keyboard III

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Datanetics Keyboard II

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1976 Datanetics Keyboard (Serial # 0010)

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Saturday, February 6, 2010

Discouraging start to the day...

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Well, I don't know what the heck happened here, but my keyboard decided not to function today. It was working fine last night... I bur...
Wednesday, February 3, 2010

Apple-1 BASIC Firmware Card

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Another EUREKA moment... well, sort of... I spent some time over the last few weeks building an expansion card with Apple-1 BASIC programmed...
Wednesday, January 27, 2010

A14F Rectifier Diode

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I've received quite a few emails on where to find the A14F rectifier diode, and my answer has always been: http://www.talonix.com/shop...
2 comments:
Wednesday, January 13, 2010

News tidbits

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If you are interested in obtaining your own Apple 1 reproduction kit, you might want to check out willegal.net to see Mike's progress o...

Second PCB Bug

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Mike Willegal had posted a question on applefritter.com awhile ago for someone to check/verify that pin 12 of the Address Decoder / 74154 wa...
1 comment:
Friday, January 1, 2010

PCB Bug

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For all of those who purchased an Obtronix board (not the kit) on ebay several years ago, there is a bug on this board. I can't say we ...
2 comments:
Wednesday, December 23, 2009

DS0025CN vs DS0026CN

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I tested the DS0026CN chip last week. Although you can enter a program which the system appears to accept, displaying the bytes in memory a...
Sunday, December 13, 2009

Mounting everything to Plywood

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On Dec 12, 2009 I used anything I could find laying around in the basement and garage to mount all of the parts to plywood. I mounted the t...

Clear Screen Button

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On Dec 11, 2009 - I added a momentary switch for Clear Screen, per the schematics. The switch uses +5v which is supplied by the ZIFF on the ...
Wednesday, December 9, 2009

Keyboard connected, up and running!

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On Dec 8 at 1:15AM I finally had reset working and dropping into the monitor program. After building the keyboard circuit, I keyed in the te...
Saturday, December 5, 2009

Apple II Keyboard to Apple 1 mapping/schematics

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All of the preceeding images were sent to me by W.Sander I will be using Sander's design for my keyboard rig. He was kind enough to go ...

Clock Signal on Clone number 2

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This is a shot of the clock signal on the 6502 / PIN-37 The peak is at 4 volts, and the frequency is 1.020 MHz. Horiz sweep is 500.0 ns. I...

First Glimpse of Working Video on Clone number 2

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This image shows the first time I had ever seen video. I don't know why one of the chars is blank, but that only happened the first tim...