MK14 KarenOrton Pictures

There are Emulators

There are Emulators for DOS, SDL1, SDL2 JAVA, JavaScript, SDL1, SDL2

This is a chance to try out emulating using different GUI systems. Some need more work.

My github: https://github.com/doug-h-rice

  DOS, - needs TurboC3.0 and DOSBox now

  Windows using Borland 4.5
  Windows using Tiny C

  SDL1 & SDL2      - runs on Raspberry Pi

  JAVA,      - Runs on PC with Java JRE installed.
  JavaScript - runs in browser slowly but lots of cheats.
  PIC16F876  - Karen Orton's MK14 
  PIC16F877  - Karen Orton's MK14 with IO pins 

Karen Orton published a version that runs on a PIC16F876

http://techlib.com/area_50/Readers/Karen/micro.htm#PIC14

Karen has a PIC16F877 version https://www.vintage-radio.net/forum/showthread.php?p=1076096

I finally built one. Thanks Karen!

IMPORTANT: I used a 100ohm current limit resistor in the power line as I fried two PIC16F876.

Instead of the transistors, I used a ULN2803A darlington open collector driver instead of the transistors.

Here are some pictures.

Some switches spaced so I could stick some labels onto the board

some details

LDI @ 0f20 is a good place to start.

A bit of cardboard on the back to protect against shorts!

I used a 100ohm resistor in the powerline and a ULN2803A instead of the transistors.

There isa PCB design available. https://easyeda.com/g7sfi/pic14-v2

Karen has a PIC16F877 version https://www.vintage-radio.net/forum/showthread.php?p=1076096