Adapter to program 27C400 40-pin EPROMs on eprommer like TL866 that supports 27C4096. To program, select that and disable chip ID function.
E.g. for Amiga Kickstart
14€
shipping 3.65€ Europe / 5.50€ World
E.g. for Amiga Kickstart
14€
shipping 3.65€ Europe / 5.50€ World