Re: Microsoft Z-80 Card on Apple II+

[quadrajet1@aol.com (Quadrajet1)]

<< >   The reason I thought the AE card may work is it was made a lot later
than the
> MS card.  Plus if I recall they made 2 versions, one with a red LED and one
> with a green LED.  I think one was 4 Mhz, the other was 6?

No.  They were all MS knockoffs and ran at an effective 2Mhz.  You may 
be getting thrown by the speed rating of the CPU chip, which has nothing 
to do with how it actually operates in circuit. >>

  I beg to differ, there was 2 different versions of the AE Z80 card.  I'd have
to do some research on that, but most of my materials from that era is buried.
We used to sell them back when they were new.  AE never really knocked anything
off, they made it better.  I have seen Taiwan knockoffs that even copied the
silkscreen so the card would still say Microsoft (or whatever) on it.  But you
could tell a mile away from the quality of the workmanship.

Raymond