Thanks - They are 2716s and 2516s. Steve also sent another Potomac board with a game called Star Attack on it that I repaired and it is not listed on KLOV for Potomac. I'm contacting the MAME folks about that one as I have a good dump of the roms. It's another variation of Galaxian but interestingly has an energy gauge that looks like it allows you to only play for a set amount of time - once the energy runs out, your turn is over. That was clever as it prevented someone from playing too long on one round. Haven't played it enough ( or am good enough before I get killed) to see if there are ways to increase the energy on the gauge.
Steve is going to contact the Star Invaders owner to see if he can obtain a dump of the ROMs. Until then we're in a holding pattern on that one.
He'll also send screen shots to KLOV after I return the boards to him.
Best,
Bill