alphaSyntauri photos
alphaSyntauri photos
Photos of My alphaSyntauri Synth
Saturday, July 2, 2016
Photos taken several years ago when I dusted off my 1982 vintage alphaSyntauri synthesizer and an Apple II Plus. Mostly of interest to someone who has stumbled across one of these and is trying to figure out what’s missing.
Interface card inside keyboard
Component side of keyboard card.
Fairchild 9311DM
4-to-16 decoder
DM74367N
DM74367N
hex buss driver
D16H-12-103J
resistor pak
Solder side of keyboard card
Apple II buss interface card
Component side
74LS00
74LS368A
74LS368A
Solder side
Pins 18-25 of the DB25 are all grounded.
What’s needed to make an alphaSyntauri
Keyboard, 4 or 5 octaves with 25-conductor ribbon cable to Apple II.
(Not a serial or null modem cable.)
Apple II buss interface card. Plugs into Apple II slot, with DB25 connector for keyboard cable.
Mountain Computer Music System cards,
2 cards connected by flex cable. May not work in an Apple IIe.
Apple II or Apple II Plus with floppy drives.
alphaSyntauri software and manuals.
Alpha Plus, Metatrak, Simply Music, Wave Editor, etc.