I thought cats only had 9 lives.... When I picked up this mini I was told it ran on 220 volts.. It has 3 twist in 220Volt plugs on it.... Well, I was just about to hook it up to 220 when I thought *maybe* I should double check the PSU jumpers. Well,,, contrary to what everyone thought.... the thing was configured for 110 Volts... 1 PDP saved! I wired it all up (I have NEVER used an 18 bit mini)... applied power and no lights... (one little breaker was on off.. talk about scarey and I was smelling around for smoke). I flipped the breaker and..... one happy PDP-15 Selected "MO", read some core, wrote some back... then went for the ultimate test....... Grabbed a paper tape (MAINDEC) hit STOP,RESET,READIN... the paper tape read in, and talk about "blinky lights" (I think I'll just wheel this mini to my living room window and run a looping test tape every day til XMAS).... The MAINDEC program ran.. The PDP-15 was Plug and Play. [no fun..not even a bad chip/solder contact to find :-( ] I don't know how to load FOCAL or even if it can be run from paper tape (stand alone). I do have a drum memory unit and mag tape but don't want to hook them up as I barely know how to operate what I have right now... (Took 20 minutes to go through some manuals to tell me how to load in the MAINDEC...). This is one weird mini. I have "Disk Monitor" and pile of other software, FOCAL, BASIC, FORTRAN, 8-TRAN, MACRO, etc... I don't know how to load any of these and there are just too many manuals to go through right now. If anyone here knows: A) Can FOCAL be run stand alone on the PDP-15.. if so how? and how do I load it? B) What atre these "Paper Tape System" tapes for? I have a teletype hooked up to it so I am hoping someone here can save me a lot of reading.... john