Those of you on UKVAC may have seen my recent posts about the Phoenix High Score save / Free Play mods I've done (
http://www.ukvac.com/forum/phoenix-high-score-save_topic353371.html). It provides attract mode in free play, fixes the 204,000 point bug and saves the highest score when powered down (no high score table or name entry as there's no room in the ROM for the code to do this!) and a couple of other subtle changes.
I've a number of the bare PCBs for sale for the high score save part of the mod. The board looks to be compatible with all Phoenix variants (as they seem to be the same PCB regardless of which code is on the board, although the end product needs to be running the Amstar code).
You'll need to be competent at soldering as it needs the existing 2114 RAM removing from the Phoenix board and sockets installing. You then make up the PCB and plug it in, additional component costs will be ~£5. The modified Phoenix code is avalable free on the
http://www.highscoresaves.com website.
Bare PCBs are £4 plus post - please send me a PM if interested.