Good Grief KP !!! You're coming in 8 yrs after the last post! I will say I just got a HT 2.4 ghz module for my Futaba 9c and love it and I have a friend who got one for his Eclipse Tx and it's revived his use of a fine old Tx, but I'm afraid you're out of luck and left in the dust of time on upgrading the memory capacity of the Eclipse. Save up your pennies and you can get a top of the line Aurora Tx with 30 mems for about $360 with a Rx; how's that for a fix? Be sure and cycle and check those old Tx batteries!

Good luck!