I have a Tandy Memory Plus Expansion Board, tandy catalog number 25-1011 that brings the base memory of the machine from 128k up to 640k RAM. It came from a Tandy 1000 (no suffix) but will work on a Tandy 1000A and 1000HD. Full information documents are contained on line at http://support.tandy.com/support_accessories/2460.htm Not sure if your model works with it? Check the docs for your model 1000 at http://support.tandy.com/support_computer/2512.htm and look under the memory upgrades page to see if it will. I know for sure it will NOT work on the EX and HX models. The card is populated with the full 512k RAM to bring your 128K basic machine up to full DOS RAM. I need $15 for the card which includes shipping to you in the 48 lower US states. AK and HI should inquire to see if any additional shipping applies, probably won't. Email me direct if interested. -------------------------------------------------------------------- Russ Blakeman RB Custom Services / Rt. 1 Box 62E / Harned, KY USA 40144 Phone: (502) 756-1749 Data/Fax:(502) 756-6991 Email: rhblake(a)bbtel.com or rhblake(a)bigfoot.com Website: http://members.tripod.com/~RHBLAKE/ ICQ UIN #1714857 AOL Instant Messenger "RHBLAKEMAN" * Parts/Service/Upgrades and more for MOST Computers* --------------------------------------------------------------------