Apple II and old arcade machines

[spec@vax2.concordia.ca (Mitchell Spector)]

    I've recently been playing around with arcade box emulators (yes,
fully emulate, though software, one of those quarter-eating monsters
so popular in the 80's) and took noticed of the technical specifics.
Some arcade machines in the 80's used 6502 CPU's (not frequently, but
some did) and quite often to my surprise, the AY-3-8910 sound chipset!
(the very same chip used to by the Mockingboard, ALF, Phasor, etc).

    I'm just curious, was Apple II's ever used in the development of 
the firmware used to drive these machines? If not used for the 6502
(or Z80 add-on boards, another popular arcade processor) at least 
maybe used as a tool for sound-effects and music development? I could
have _sworn_, maybe 15 years ago, I saw a television documentary that 
showed a group of programmers creating the music and sound for the 
Bally Midway game Tron using an Apple II+. Sure enough, a look back 
now and Tron did indeed use an AY-3-8910 for sound. If they did use
Apple II's, I wonder if I can't find some ALF files of the original
arcade games somewhere. :) (It sounds 100% like the real thing in
the arcade emulator, but hearing it coming out of my Apple II would
be neat of course ;)

Mitchell Spector
spec@vax2.concordia.ca