7 Jan
2005
7 Jan
'05
4:13 a.m.
Michael, to get a version running, you could "build" an inverter on a 14 pin
header with the inverter pinout you need. I realize it would take a couple of 6 resistor
packages and six transistors. At least you could replace the "part" with the
real one when you find it. It might actually be a conversation piece to show people what
went into the RTL chips themselves. Just a thought anyway.
best regards, Steve Thatcher
-----Original Message-----
From: Michael Holley <swtpc6800(a)comcast.net>
Sent: Jan 7, 2005 1:04 PM
To: cctalk(a)classiccmp.org
Subject: Re: RTL Logic
My goal on the Tic Tac Toe machine was to build an exact replica of the Don Lancaster 1971
design. I have 2 of the MC789 inverters so I could build one unit.