Ok, I picked up some keen stuff today that I'd like to hopefully get some information for. 1. Tektronix 4041 Computer/Controller. Now this is neat. Unfortunately it doesn't do a whole lot at the moment. First a description: its about 8" wide by 8" high (front) by 2' long. It has a built-in 20 column thermal printer and a DC-100 tape drive. The front panel consists of a numeric keypad plus some other special function keys, an LED display and some status LEDs. I opened it up and found that it is a 68000 based system. It seems to use an S-100 bus, since the cards have S-100 edge connectors. It has four slots, and two of the slots are filled. One has the CPU card with the 68000 processor. The other is a Standard I/O card. The two other slots are Read/Write Memory (RAM) and an Option Card slot. The front panel also has a slot for a ROM pack. The ROM pack is a tray that pulls out and has two ROM packs plugged in with room for 4 more ROM packs. The ROM packs included allow for BASIC programming. On the back is an RS-232C port and a GP-IB (IEEE488) port. It is circa 1981. When I first booted it up the printer started spitting out paper. The next time I turned it on only the power LED came on. I then turned it off and opened up the cover to examine its innards. I pulled each card and checked them out then replaced them. I turned it back on and this time got "SELF TEST" on the display. It never does anything after that. I got two manuals with it, and of what I've read so far, the self test should check all the controllers for the tape drive, the printer, the front panel, and perform other diagnostics, then show the ROM version, but it never does this. I'm wondering if a lack of a RAM card is the culprit. This system also came with an optional programming keyboard, which was just a full size keyboard for entering in programs. If anyone can shed any light on this sucker and what else it could do I would appreciate it. I remember seeing in a book I have a picture of the graphics output of some Tektronix computer on a screen. I can't remember what book this was in or even where that book may be. I wonder if this is the system that produced that output? 2. A Lynx 460 Floppy Drive Alignment Tester. It has two connectors for 8" and 5.25" floppy drives. It has all sorts of toggle switches on it for selecting the drive (1, 2, 3 or 4), the head (1 or 0), the track address, etc. It also has status LEDs to show, for instance, Amplitude, Radial, Head Load, etc. Not that I know what any of this means (not yet at least, I got it with manuals and the manuals have a nice introduction to disk drive theory of operation). Anyway, apparently you use this in conjunction with alignment disks. Looks like a cool box (it's very small, the size of a notebook) that will come in handy in years to come. Any further information on either of these would be appreciated. Sam ------------------------------------------------------------------------------- Computer Historian, Programmer, Musician, Philosopher, Athlete, Writer, Jackass