For some reason the misbehaving TC01 controller on the PDP-8/I at the RICM decide work yesterday. Possibly due to the low temperature in the RICM warehouse. We took advantage of the situation and formatted and tested five DECtapes. Following the procedure in Appendix-A of the 4k Disk System Monitor System Disk System manual, we ran the DEC-D8-SBAF-PB 4k Disk System Monitor System Disk System Builder. We told it that the 8/I system does not have any disks or a high-speed paper tape reader. The System Builder wrote the Monitor, Loader, Command Decoder, Directory, and Storage Allocation Block Maps to the DECtape. We were able to enter the DECtape bootstrap program and boot the 4k monitor. The next installation step is to add programs to the DECtape. We continued with the procedure in Appendix-A.4. When the console displayed an ^ we entered a CTRL-P and then told the terminal emulator to send DEC-D8-PDAD-PB Disk System PIP-DF32 tape image. After sending about 1,500 characters the 8/I started echoing the characters from the tape image on the console and the command processor tried to use the input as commands. Somehow, after receiving 1,500 characters the 4k monitor switched from paper tape input mode to command mode. I am not sure if this configuration can be duplicated on one of the emulators. If someone could try the monitor installation and subsequent loading of programs from a real "Teletype" it would be interesting to see if it works. If it does work, then maybe we need to add the reader control circuitry to the 20mA/RS-232 converter that we are using to connect a PC to the PDP-8/I. Any advice would be appreciated.