🚀 go-pugleaf

In article <3688@zen.berkeley.edu> bryce@hoser.berkeley.edu (Bryce Nesbitt) writes:
> 
> Seems that Amy has been "sleeping around" with a lot of different drive
> manufacturers.  No offical word, but my spies report:
> 
> Mitsumi	
> Matshshita
> Sony
> NEC
> Chinon		(Amiga 500)
> Panasonic
> 
> Which reads as a "whos who" of 90mm drive manufactures.
> 

I think the "official vendors are NEC, Matsushita and Newtronics for the A1000,
Chinon for the A500 and A2000.  The Chinon drives aren't 5 volt only, although
a number of drives tentativly approved for the A500 are.

> There seem to be no *real* standards in 90mm drives.  Every manufacturer
> is a little different.  The /CHANGE signal is the most volitaile of all.
> The definitions of Pins 1,2 and 34 are wildly different from manufacturer
> to manufacturer.  Such is life...

No hard and fast standards, when you order a few tens of thousands, you just
tell them what options you want and send the money.  This track zero thing
has never been a requirement, since the software normally takes care of the
problem.

-- 
George Robbins - now working for,	uucp: {ihnp4|rutgers|allegra}!cbmvax!grr
but no way officially representing	arpa: out to lunch...
Commodore, Engineering Department	fone: 215-431-9255 (only by moonlite)