Quoted from bbhenry2000:
Sorry for the noob question, but how do I know which nvram's to get? I've seen several for sale.
Ask and ye shall receive
Here's a list of games organized by NVRAM type that should make it much easier to figure out what NVRAM you need.
Please let me know if you have any questions!
Also if anyone finds any mistakes or I've missed any games (for which there is currently nvram for) let me know.
http://www.pinitech.com - "Pinball Inspired Technology"
NVRAM, kits, upgrades and test equipment for pinball machines