Activity Stream

Yup, I use dielectric grease on connectors of all sorts. Great stuff. I think one of the chemical vendors (Kaig?) makes a spray that leaves a...

...and most significantly, other than speed, you realized none of the advantages (save for the instruction set additions) of a genuine 80286 system...

I have version 5.x but it's for PCs.

The old trade name is "Blue Ribbon", usually from Amphenol, although Cinch made them as well. "Centronics" should refer only to the 34 conductor...

the basic mech dates from the mid-60s http://bitsavers.org/pdf/roytron/Roytron_500_Series_Punch_Technical_Reference_Manual_May1970.pdf chapter 4

OK, I have a number of wee arduino projects for “radar sumulators” on LCD screens (different project/different world). I guess that they are better...

This could also be written in Python, which is available (free) for all sorts of platforms including for Windows and for Linux, including the...

I forget what the connectors are called but this looks to be the same style as we often call a centronics printer connector. look through a digikey...

The SOTA board ups the clock speed to 12mhz and comes with a cache so it's probably faster at least some of the time. But by how much is a fair...

I googled "NE2000 jumpers" and the first link was this: https://support.microfocus.com/kb/doc.php?id=1200390 But probably what you want is actually...

Years ago, I did some experiments. While at Intel, I was often reseating things. In some cases, we found that things like using an orange eraser...

This changed over time as the design was revised and enhanced. there is a list of parts for the rev 0 in my reproduction build manual ...

Its pretty foggy. I want to say version 4 or 5.

...and there were Olivetti PCs with passive backplanes that took CPU cards. I have one such 80286 card, but no machine.

I stand corrected. On some monitors you can do this, but apparently there are others where you can't. Best not take chances.

So basically it's not much faster than replacing just the 8086 by a NEC V30...?

If the APS drive already appears on the desktop, is there really any need to re-initialize it? Can't you copy the System folder to the drive then do...

It's just a SOTA 286i accelerator. It's not specifically for the M24, one of the advertised features of this card is it worked with both 8088 and...

You can probably use the FC-20 on both--it's basically a floppy controller (usually Intel 82078, IIRC) with a faster high-end transfer speed. Bear...

I can't seem to find a reference to Apple Mac support in the Wayback Machine. Do you remember the Version approximately? See here:...

$40 IBM 5170: https://www.facebook.com/marketplace/item/2486618068327018/

All of the CF cards I have, including those evil 2GBs, are Cisco labeled, but of course that doesn't really mean anything. I think I'll spend an hour...

Back in the dim and distant, I started out with an IBM PS/2 ITBU (Internal Tape Backup Unit). This was basically an Irwin drive using 3M DC2000...

Sold thanks to VCF and it's members.

The more PET Games the merrier! Thanks!

This has been sold thanks to VCF and it's members.

Things don't work forever, not even things you made yourself. the 8" floppy drives for my late father's H-11 worked fine for years, then one day...