Apple 1 6800/6502 (RE: kits, definitions, prices...)

From: Kai Kaltenbach <kaikal_at_MICROSOFT.com>
Date: Wed Oct 7 17:42:37 1998

It's pretty clear if you look at the board. Note 7 in the Processor Section
Schematic elaborates thus:

"7. Unit, as supplied, includes a 6502 microprocessor, and solder jumpers at
both points marked '6502', and has omitted all components shown within the
dotted box. If a 6800 is substituted for the 6502 it is necessary to
install all components shown, and to break both solder bridges labeled
'6502'."

The "dotted box" refers to a normally unpopulated area of the board. The
components shown within the "dotted box" are just 4 transistors and a
handful of resistors and caps. Remember that the 6502 was largely an
electrical clone of the 6800 with a different instruction set. Obviously
the supplied monitor ROMs wouldn't have run on the 6800, but the monitor
source is supplied and could be translated.

Kai

-----Original Message-----
From: Doug Yowza [mailto:yowza_at_yowza.com]
Sent: Wednesday, October 07, 1998 3:27 PM
To: Discussion re-collecting of classic computers
Subject: RE: kits, definitions, prices...


On Wed, 7 Oct 1998, Kai Kaltenbach wrote:

> Little-known fact: The Apple 1 wasn't a 6502 machine... it was a 6502 OR
> 6800 machine.

That is *very* little-known! Either somebody got sold a 6800 machine with
an Apple 1 label on it or there needs to be some documentation for this
claim! References?

-- Doug
Received on Wed Oct 07 1998 - 17:42:37 BST