I've had several PhoneNet adapters in my collection for many years but never used them since my SE/30 has an Ethernet card. But today I was thinking about multiplayer games like MazeWars which might be fun for myself and my two kids. I have a Mac 512k (64k ROMs) and a PhoneNet adapter for it (including terminating resistor), and I also have two Farallon PhoneNet adapters with round connectors for use with more modern Compact Macs like the SE/30 shown here:
I am running System 6.0.8 and System 7.1 and 7.5.5 on my two SE/30's, and I have pre-System6 operating systems o