M H Stein wrote:
----------Original Message:
Date: Tue, 20 May 2008 10:28:11 -0600
From: Richard <legalize at xmission.com>
Subject: Re: Capacitor values for original PET power supply?
In article <20080520111556.GD1028 at usap.gov>,
Ethan Dicks <ethan.dicks at usap.gov> writes:
The memory board looks interesting - any idea
what was meant to go
in the cartridge slots?
I wonder if it isn't a memory board scavenged out of some other piece
of hardware and simply hacked to appear as more memory in the PET?
It's labeled as a "Compu/Think Expandamem" which is listed as a
" RAM
Expansion w/KIM bus for original PET" at
http://www.portcommodore.com/petperiph.php. I'm going to be holding
onto that, probably hook it back up after I get the basic system working
again.
I've dumped the ROMS on the handbuilt expansion board. If you're
interested in taking a look, see
http://yahozna.dyndns.org/computers/pet. I've named them as the labels
on the EPROMS indicate. I've glanced through them, there are no ASCII
strings or anything to make them easy to identify. Haven't done a
disassembly yet...
Josh