The Junior was sold as a kit by the Dutch firm Musicprint, read here the extra instructions in the kit.
 |
Musicprint instructions |
It took Elektuur some time to add a cassette interface to the Junior design, it was a year until the Interface PCB appeared. Many users therefore bought the socalled musicprint cassette interface. See here the description and circuit design.
See also:
Proton PIM-1
Gerben Voort acquired a microprocessor development system PIM-1 developed by Proton, of PC-1 fame.
Here his photos of...
PROTON Electronics: PC-1, CB80, PIM-1
PROTON Electronics, a small company form Naarden the NEtherlands, led by James Post, and A.J. Kool as technical manager,...
EMUF 6504 remake
A remake by Klaus Loy of the 6504 based EMUF 6504 as published in MC, see the many original articles about the EMUF.
...
MACH-9 MMS Inc 6809 CPU Plug-in for AIM 65
Royce Taft has a MACH-9 MMS Inc 6809 CPU Plug-in for AIM 65 and reverse engineered it.
He sent me his design to be pu...