COMMODORE-64 64KB MAGIC DESK COMPATIBLE SINGLE FILE AUTOSTARTING CARTRIDGE Hello, This is a tested and working circuit board. You can easily make your own C64 Game / program Cartridge with this PCB, all components are through-hole, easy to solder, easy to make.This C64 cartridge is based on C64 Magic Desk cartridge, modified for running a single autostarting game/program(.prg extension) on commodore 64. There is a 64KB eprom (27c512) on the cartridge. There are many single file .PRG extension Games and Programs for Commodore 64. You can choose your favorite ".PRG" extension file and prepare your own eprom binary image using a special software. With this software you can prepare single autostarting file (without menu) eprom image ".BIN" extension file. You can try/test this file with VICE emulator. Many tanks to Feandreu and zzarko. You can download the software from this link: https://github.com/Feandreu/mdeskcrtgenfspThis Magic-Desk Compatible Cartridge is based on msolajic's (Marko Solajic) "c64-magic-desk-512k" project. Many thanks to Marko Solajic.https://github.com/msolajic/c64-magic-desk-512kThis PCB is a Commodore64 64KB Magic Desk Compatible cartridge PCB, so this cartridge can also be used as; generic 64KB Commodore 64 magic desk compatible cartridge (with multi program menu, max. 64KB total).In order to protect your electronical devices, always turn off your Commodore 64 before connecting or unconnecting any device.Have funThank you.COMPONENTS:27C512 DIP28 (W27C512)74LS02 or 74HC02 DIP1474LS273 or 74HC273 DIP20DIP28 WIDE IC SOCKETRIGHT ANGLE TACTILE BUTTON (Optional, for reset)If your programmer have capability to test IC chips, like 74LS series, then you should not forget to test them before soldering, some chips may have defect. (TL866 Minipro Programmer is able to test some of logic IC)Gerber files can be changed at any time. Before paying for the PCBs, be sure to update your orders!