In terms of the PSU section does anyone have any suggestions on how simple the 12v solution can be - e.g. would the zener need a transistor amplifier or will the SC/MP current drain be so low and constant not to need it the data sheet says typical 100 and max 135? mA so should not vary to much.
On another note I was lucky to secure an original summary card with a NOS in tube SC/MP II last year.
I have just done a scan of it as I have only ever found a photo of a very bad condition one online anywhere but, yet again it is too big for the forum so I have added it to my GoogleDrive...
SC/MP Instruction Guide