Not sure if he needs 15V ?
Of course regulators can be used to lower the voltage if needed.
Number of Atari ST books DUTCH !:
Atari ST Peeks & Pokes
Platine Atari ST (was a program to design PCB's, very cool then !

Atari ST Omikron Basic
Extra nice: Jaarboekje Computer '85 with info about Atari 600XL/800XL, C64, Spectrum Contains all port info and a number of listings for the various computers.
Nice collector's item, want a decent price for that or I'll keep it




