For my amiga i started to build a floppy disk reader/writer using a arduino. I found a superb project by rob smith. It uses only a arduino pro and a FTDI USB to serial breakout board, to raw read and write disks. I wanted to convert my own created amiga disks to PC image to use in a emulator like vice.
Got a working amiga again. \o/ woot Needed to replace Paula chip, cleaning and some TLC.
Modulator
Chip donor
Scart cable i’ve got is one without the resistors, so my monitor isn’t detecting the signal. Using a A520 modulator works. At least RF, don’t know why RCA/composite video isn’t working.
Even a memory expansion and second drive (5.24 inch) are working.
One of the first disks i tested
To do:
Fix something to get disk images from and to my pc.
(My old catweasel card only fits in a ISA slot which i don’t have any more)
I was wrong .. i’ve got a IV Catweasel .. PCI it is
Fix scart
Fix my Action Replay, which i soldered into a non working state apparently .. 🙂
Get a better mouse!
Catweasel IV
Kickstart selectorAction Replay
Disks to convert:
Personal text files from ages ago
My first seka demo
My oscillator drawing program
Other assembly source files
Got another one running today also:
Olivetti M21 machine you could carry with you. 9″ screen, 640K memory, 8086 Cpu
20220502: Fixed another C64, PIA (Peripheral Interface Adapter) was dead, luckily i’ve got several spare-part c64’s. So that was a easy fix.
20220504: Got my sd2iec adaptor in, see bottom of this page.
Booting with a power cartridge
None of my old computers was unmodified
Demo by my old friend Sepp
Drive is a 1541model 2
De wires are going to the DOUT pins of the memory chips. Showing activity using leds. Sometimes i monitored CS .. also informative.
SD2IES Cardreader
Little small funky gadget, it replaces a 1541 Floppy drive with a SDCard reader where you can store a lot of floppydisk images on. More on this later.
NOTE : Doesn’t work together with my KCS Power cartridge.
CartridgeScreen
I’ve tested two cartridges.
Final cartridge III fastload test on a program did ~3 seconds. ( Normal load time ~17 seconds. ) KCS powercartridge didn’t work. Tip: press `runstop` when using FC3 while turning on to get into basic not the desktop.
Trying to fix a computer from my computer collection.
Comx-35 (1983)
RCA 1802 CPU @ 2.8 Mhz
32K Memory
Apparenty something wrong with the graphics chip.
The COMX uses the RCA CDP1869 and CDP1870 Video Interface System (VIS), consisting of the CDP1869 address and sound generator and the CDP1870 colour video generator.
Maybe next to try : checking signals using a Logic Analyzer
Below one of the two setups we made to control our TV. The kind of TV which was big, ungly and without remote.
This version used 3 strings. One for moving a little wooden piece to the left, one for moving to the right and one for pressing a bunch of nails agains a touch/capacitive button. (We only used channel 1 till 4 i believe)
The other version used a string per channel. A piece of metal, with at the end of it a little alumium-foil ball
3 strings remote
many strings remote with alumium-foil balls
"If something is worth doing, it's worth overdoing."
