Altair Replica and Stuff

[TomL_12953]

The computer itself is performing flawlessly. The 2SIO, Port 1 is perfect. I hooked it up to a terminal program on a PC and can run VTL-2. That's a neat language for taking so little memory. On Port 0, though, the Teletype prints the OK message but I can't type anything. I checked my cable wiring about thirty times then hooked the Teletype up to the PC and was able to communicate with the Altair32 emulator and a terminal program OK so I know the Teletype is good. Any ideas what could be wrong? Did you have a 20mA machine there to test Port 0? If so it worked for you, right? Thanks again for your obvious care in the assembly and packing of this machine. I can't wait to get the Port 0 problem fixed and to get my ACR board from Grant.