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Is there any known authoritative source for the official color definitions (such as Pantone colors, etc.) used on DEC toggle switch programmer’s panels? I’m particularly interested in the two-tone green scheme used on PDP-12 and LAB-8/E systems, and the two-tone blue scheme used on some of the...

I would like to add a high speed punch/reader to my PDP-8/M one of these days. I do have a couple of serial interfaced fast punch/readers from the CNC world, and a few reel-to-reel readers from the CNC world which I could consider building a PC8E-compatible OMNIBUS card for. But it would be a...

I’d like to add a high-speed punch/reader to my PDP-8M project. I’m drooling over a PC04/PC8E (plus documentation, tapes, and other extras) listing on eBay with an asking price of $9,500. Is that a crazytalk eBay price, or is that in line with the market value of vintage DEC punch/readers in...

I recently got three DECtape reels from eBay auctions. One is in a green LINCtape case, and the other two are in blue DECtape cases. I seem to recall reading that DECtape and LINCtape have opposite conventions for which sides the supply and takeup reels go on. All three of my tapes are wound...

I would like to add some sort of DECtape or LINCtape drive to my collection. I think there’s little chance of me finding one that is both available and affordable, but a guy’s gotta dream. I’ve never used, seen in person, or touched one before, but I’ve at least finally gotten my greedy fingers...

I'd like to add a Unibus expansion chassis to my VAX-11/730. I might try adapting an extra stripped PDP-11/44 chassis from my project pile for that, but if I could find a proper BA11-K (or equivalent) box with Unibus backplane(s), that would be swell. I think one might fit in the space under the...

My PDP-11/34A system came with a Fujitsu M2284K hard drive. The hard drive power supply is dead, and I haven't managed to debug and repair it yet to try spinning up the hard drive. I am looking for a replacement power supply, and/or any detailed documentation about the power supply. I have the...

I would like to get an original paper field maintenance print set for my PDP-11/34A system. I have scans from Bitsavers already, but I would like a clear original print set on paper for easier reference while studying and debugging my system. I'm near Riverside, CA, USA.

Hmm, now I'm imagining converting my 6000 project to a 6000FreHD, with a hard drive emulation hidden behind a trim panel in the second floppy drive bay. Might as well hide floppy drive emulation in there, too, with a switch to select either the real floppy drive or an emulated one for floppy...

Poking around in the schematic diagram of my Kaypro 4/83, I see that there are two 3881 PIO chips, each with one 8-bit port used and the other 8-bit port routed to test/expansion points. Are there any historical accounts of Kaypro, third-party manufacturers, or end users making interesting use...

Is any supporting software out in the wild for the CP-1995/U computer, AKA the "SHTU Terminal Unit"? This machine is a hand-held portable terminal designed around an 80286 processor, running MS-DOS. It has various radio interfaces built in. My sample of one has the operating system, diagnostic...

I'm getting close to bringing up my S-100 chassis for the first time, populated with a set of Compupro cards. My full card set consists of: CPU-Z System Support 1 RAM 17 Disk 1 Interfacer 4 I think that I would like to start with a ROM-resident monitor for initial debugging, before I try...

I have a Macintosh IIci, running System 7.1. My dad got me a Farallon Ethermac NuBus NSC PN590A for Christmas, and I'm having trouble getting it working. He had the foresight to pick out one that came with a driver diskette. It didn't come with a manual, so I guessed that plugging it into an...

This may be a long shot: Does anybody have an Apple II Workstation Card sitting around, that might find its way into my enhanced IIe?

I'd like to acquire a few original external Hayes Smartmodems: Hayes Smartmodem / Hayes Smartmodem 300 Hayes Smartmodem 1200 Hayes Smartmodem 2400 I'm located in southern California. Can pay by PayPal. No eBay.

I am looking for a master distribution disk for either version 2.2R or 2.2S of Compupro CP/M-80.

I just became the proud new owner of a lovely SOL-20 computer system. While I have a few monitors which should work with it, none of them will look Just Right sitting on top of it. So, I am looking for a suitable, contemporary monitor to go with my SOL-20. A monitor that I might have bought at...

I just got a nice VIC-20 from a Goodwill auction. I don't have a video cable for it yet. I can make one if I have to, but does anybody have an original cable and/or modulator for sale or trade?

I'd like to put together a Macintosh IIci system with both Ethernet and AppleTalk support, to bridge the gap between a 512k Macintosh that I'm getting and my modern systems. So, I think I am looking for: Macintosh IIci w/ keyboard and mouse Original monitor for the IIci, or a suitable VGA...

I just won a Goodwill auction for a 512k Mac system. Yay! No floppy disks are pictured, so I assume that I will need to procure or create boot disks for it after I clean it up (and if necessary, fix it). I'm looking forward to receiving it! This one looks like it was never upgraded with 800k...