Well, I can't find anything in the archives, so I'm looking for the documents for the RAM test card that plugs into the old 8080 (Space Invaders, etc.). This has three LED 7-segment displays, that produce a code to indicate which RAM is bad (assumption). So I have a bad board and hope to use this to speed up the RAM test...without warming up the Fluke toys. The card has MIDWAY MFG CO and "80-903" as a part number, also has a single PROM (24 pin) and two 24 pin sockets - one for the PROM, the other for a 24 pin ribbon cable to plug into "H" (assumption again). I have a picture I can send if anyone thinks they might have something on it.. John :-#)# -- John's Jukes Ltd. 2343 Main St., Vancouver, BC, Canada V5T 3C9 Call (604)872-5757 or Fax 872-2010 (Pinballs, Jukes, VideoGames) www.flippers.com "Old pinballers never die, they just flip out" If you ever want to (un)subscribe yourself with TTL, you can send mail to: <Majordomo@flippers.com> with the following command in the body of your email message: (un)subscribe techtoolslist or from another email account, besides xxx@yyy.com: (un)subscribe techtoolslist xxx@yyy.com