A co-worker of mine recently gave me a box full of treasure... A box full of atari 800 hardware parts! He even went as far as putting some of the parts together into a working 800 model, inside of a big and heavy wooden box (gives a whole new meaning to "heavy sixer"). I probably have the biggest atari 800 in existence! It actually works just fine, it turns on and displays the memo pad, but it seems to be missing some components (such as the cart slots).
The other thing it is missing is a knowledgeable owner

Anybody can help this very excited new atari owner?