The plans were printed in the French magazine 'Electronique Radio Plans' issue 517.
I have scanned the pages<gallery>File:Pokrom1.pngFile:Pokrom2.pngFile:Pokrom3.pngFile:Pokrom4.png</gallery> Sorry for poor scans, more info to follow when they were taken from a photocopy of the original.I will upload themtranslated text and better diagrams. [[Category:Peripherals]]