Computers

Good article on the cause of plastic turning yellow.

A great article on Vintage Computing on the causes of yellowing plastic on old computers.

Commodore C64 PLA Die

An Outsanding Paper: "The C64 PLA Dissected"

An Excellent write-up on the Programmable Logic Array (PLA)  by Thomas 'skoe' Giesel.  This PLA is found in t

Vintage Gamma spectrometry system based on C128D

Vintage Gamma spectrometry system based on C128D

Here is an amazing Gamma Spectrometry System based on C128D posted by one of the users on c128.com, Tomislav Plese.  Here Tomislavm who goes by Tomy, shows some Tokyo soil samples taken since  Fuki

Commodore Colors

 From an article by Philip "Pepto" Timmermann

Schematics for C64 Plus with 80 Columns

Schematics for C64 Plus with 80 Columns

More schematics from 30 years ago.  This is for a computer known internally as the C64+ or C64 Plus and has built in 80 column support.  Unfortunately there is a page missing.

DLH's Commodore Archive

DLH's Commodore Archive

 

 

DLHs Commodore Logos.jpg

CB< Commodore, TED, C116, C264, Plus-4, Bil Herd, Dave Haynie, Terry Ryan, Fred

TED Drawings from the 1980's

 

 

 

CBM, Commodore, Z-80, CPM, C-64, VIC-40

CPM Z80 Cartridge for the Commodore VIC-40

More of those sets of drawings that I found in a box dating back 30 years to when I worked at Commodore Business Machines in West Chester PA. 

Commodore C-64 80 Column Adapter

Commodore C64 80 Column Adapter

I have found several sets of drawings in a box that dates back 30 years to when I worked at Commodore Business Machines in West Chester PA.  I had assumed that these products eventually got release

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