Date   : Sun, 09 Mar 2008 22:49:15 +0000 (GMT)
From   : info@... (Sprow)
Subject: TUBE chip, accessing 'Parasite' side

In article <Marcel-1.53-0309224105-0b0xSBG@...>,
   Johan Heuseveldt <johan@...> wrote:
>   74LS00  (close to the the 16MHz crystal; obvious)
>   74LS02
>   74LS73
>   74LS393 (probably the refresh counter)
>   74LS133 (probably the TUBE address decoder)
>   74LS257
>   74LS257
>   74LS590
>   74LS109
>   74LS20

Page 25 of the 6502 2nd processor service guide describes what all the chips
do, and the earlier text describes the origins of the "colision detection",
Sprow.