Eric Schlaepfer created this nifty board for retro computer users:
This PS/2 floppy adapter is designed to allow standard PC floppy drives to be used in IBM PS/2 systems that have 40-pin edge connectors for their floppy drive interfaces. Compatible models include
- IBM PS/2 Model 50 and 50Z
- IBM PS/2 Model 60
- IBM PS/2 Model 70
- IBM PS/2 Model 80
And others as well.
The design files are here.
The bill of materials is as follows:
||34-pin 0.1″ breakaway header
||1K ohm resistors, 0603
Watch Ben Heck assemble his Z80 Note board this video:
Some people like to do things the hard way. Maybe they drive a manual transmission, or they bust out the wire wrap tool instead of a soldering iron, or they code in assembly to stay close to the machine. Doing things the hard way certainly has its merits, and we are not here to argue about that. Scott Shawcroft — project lead for CircuitPython — on the other hand, makes a great case for doing things the easy way in his talk at the 2019 Hackaday Superconference.
In fact, he proved how easy it is right off the bat. There he stood at the podium, presenting in front of a room full of people, poised at an unfamiliar laptop with only the stock text editor. Yet with a single keystroke and a file save operation, Scott was able make the LEDs on his Adafruit Edge Badge — one of the other pieces of hackable hardware in the Supercon swag bag — go from off to battery-draining bright.
via Scott Shawcroft Is Programming Game Boys With CircuitPython — Hackaday
The RC2014 is a Z80 based modular homebrew. The designer Spencer Owen recently did a version with our After Dark service (clear solder mask on black substrate) and it is available on Tindie:
Special edition Z80 based retro computer kit with stunning After Dark PCB
Fundamentally, this is an RC2014 Mini. A single board Z80 computer that runs BASIC or Z80 assembly code. If you are looking for an easy to build, good looking, well supported Z80 single-board computer, you probably should just go and buy a RC2014 Mini
However, if you are after a stunning looking Z80 single board computer which is one of only 25 in the world, then read on…
Limited Edition RC2014 Mini After Dark
- Amazingly beautiful AfterDark PCB from OSHPark features black FR4 substrate, 1oz copper with clear solder resist, ENIG (gold) pads and white silkscreen
- Every track from the original RC2014 Mini has been relaid for maximum visual appeal
- RC2014 logo in the top copper layer
- Turned pin chip sockets
- White connectors, jumpers and reset switch to compliment the silkscreen
- Laser-cut mirrored base plate with brass PCB standoffs allow the underside of the board to be seen
- Rubber mounting feet
- Limited run of 25 kits, with each one being numbered. Kits will be supplied strictly in number order and records kept if later verification is required
- Option to buy a standard RC2014 Mini with a 50% discount so you can hack around and modify the standard RC2014 Mini whilst leaving the Limited Edition RC2014 Mini After Dark kit intact. Or mix & match the black and white connectors to create your own unique RC2014.
- Same specification as standard RC2014 Mini (Z80 processor at 7.3728MHz, 32k RAM, ROM with Microsoft BASIC / SCM Monitor, 5v power over USB barrel jack cable or FTDI cable, 115,200 baud serial communication, keyboard connector for Universal Micro Keyboard, Pi Zero header option for Pi Zero Serial Terminal
- Luxury packaging for that unique “unboxing experience”
- Shipping will automatically be upgraded to signed, tracked or recorded delivery based on your location
- Limited run RC2014 After Dark stickers
From Jac Goudsmit on Tindie:
Build a Replica of your favorite early 6502 Computer. Or Create Your Own.