Monthly Archives: June 2020

ZX81 Ram Pack Issue 1 4164 Update

Posted on 1 June 2020 by levoman

Goal:- Replace 4116 chips with 4164 chips and make pack more reliable and eliminate the annoying ribbon cable. Please note that this will not give you more ram even though 4164’s are 64k the ram pack is only designed to … Continue reading →

Posted in ZX81 | 1 Comment

ANanoMouse – attach a ps/2 mouse to the AMIGA

Posted on 6 June 2020 by levoman

Welcome to the ANanoMouse Page. Here we will create an interface for the AMIGA to use ps/2 optical and ball mice. Based on Meegamouse code By Robert Cross  and the  PS2 library Written by Chris J. Kiick, January 2008. I am fed … Continue reading →

Posted in Amiga | Tagged , , | 2 Comments

ZX81 Ram Pack Issue 3 4164 update

Posted on 1 June 2020 by levoman

Goal:- Replace 4116 chips with 4164 chips and make pack more reliable. Please note that this will not give you more ram even though 4164’s are 64k the ram pack is only designed to address 16k. Got a Rampack to … Continue reading →

Posted in ZX81 | 3 Comments

ZaxxDual cartridge Zaxxon and Super Zaxxon on one cartridge

Posted on 1 June 2020 by levoman

This project is shared on PCBWay https://www.pcbway.com/project/shareproject/C64_ZaxxDual.html While working on a project to replace the PLA in one of my Commodore64’s I came across the fact that the game cartridge ‘Super Zaxxon’ seemed to fail unless the PLA substitute was very … Continue reading →

Posted in C64 | 4 Comments

ZX81 Peripheral supply pcb

Posted on 1 June 2020 by levoman

Update : Now includes cad designed pcb The object of this project is to give the +5v and +9v supply to power ZX81 peripherals without a ZX81. For this project you will need :- Some Veroboard 10uf 16v capacitor 7805 … Continue reading →

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C64 ROM to PLA adapter

Posted on 1 June 2020 by levoman

This project is shared on PCBWay https://www.pcbway.com/project/shareproject/C64 PLA to ROM adapter.html   I have been looking at this project for a while and there are several boards around , however nobody has shared them so i decided to create my … Continue reading →

Posted in C64 | 1 Comment