Projects

Here you can find a database of various Retrohax.net projects I worked on over the years.

I decided to share my electronic projects, models to 3D print or laser cut that I’ve created for the machines described on the blog in a more convenient way and put it in a single, easy to access space. The DB will be growing slowly as there is plenty of material to upload and describe.

A small module that replaces RF modulator and allows you to connect your Amiga 600 or 1200 via an S-Video.

Relevant blog posts:

This is a very simple module that you can install in place of an RF modulator and connect it directly to CXA1145 chip. Connection details in above blog posts.

BOM:

4x Resistor 110k ohm 0805
4x Resistor 10k ohm 0805
2x Resistor  39 ohm 0805
2x Capacitor 100nF 1206
2x Tantalum capacitor 100uF KEMET D / EIA 7343-21
2x Transistor PMBT3904 SOT-23

Installation manual

DOWNLOAD PROJECT Includes schematics, and BOM

SD2IEC is an open hardware project which emulates (not fully) a floppy drive. Instead of having tons of floppies (which is cool :P) you simply put all software onto SD card.

Relevant blog posts:

Out of all variations that I’ve created there are two worth replicating.

  • DIN6 version – for external use
  • Universal – can be used internally and externally

sdiec

sdiec

Example AVR programming command: avrdude -c usbasp -p m644p -U flash:w:newboot-0.4.1-sw2-m644p.hex :i -U hfuse:w:0xDA:m -U efuse:w:0xFD:m -U lfuse:w:0xE7:m

DOWNLOAD PROJECT – Includes schematics, and BOM

sdiec

AVB/RGB4ALL is a module that converts RGB signal to Color Composite or S-Video.

Relevant blog post:

I’ve created few versions of this module but the final version is more universal. You can use it as an internal module by soldering signals to pads directly or as an external Amiga module with DB23 or DB25(with a bit of cutting). This module also works with other computers that output RGB – Amstrad CPC464/6128 for example and probably with many other computers.

RH avb

IMG

BOM:

  • 1x AD724JRZ
  • 6x 75 ohm 0805
  • 5x 100nF 0603
  • 2x 4,7uF 0805
  • 1x 10pF 0805
  • 3x 220uF Tantalum Cap
  • 1x RCA socket
  • 1x S-video socket
  • 1x DB23 or DB25
  • 1x Quartz oscilator
  • 4.433620 MHz HC49/s

DOWNLOAD PROJECT – Includes schematics, BOM and SVG files for laser cutting

RH avb