I am one of those seven recipients. I apologize for the lack of a
response. I do greatly appreciate your taking the time and effort to
send it to me. I did, also, in a sense fall into a black hole. My
computer crashed shortly after received the package and I lost a great
of email and contact information (of which your email address was one).
I have been busily entering it into Protel 99 (although I'm not as far
along with that project as I'd like).
So, thank you for the article and your time. It IS greatly
apreciated!!!
Douglas Wood
----- Original Message -----
From: Billy Pettit <Billy.Pettit at wdc.com>
Date: Thursday, December 21, 2006 1:47 pm
Subject: TTL Calculator Project
To: cctalk at
classiccmp.org
Several months back, we talked about a calculator
built from TTL.
It came
from a 1970's article in Practical Electronics, an English Magazine.
I had 7 requests for copies, which I mailed directly to the
requestors.Apparently they disappeared into a black hole, because
I didn't receive a
single acknowledgement, let alone a thank you.
So for those still interested, Al Kossow scanned my copy and
posted it on
bitsavers:
http://www.bitsavers.org/pdf/practicalElectronics/digi-cal/Digi-
Cal_Jul72-Ma
y73.pdf
Billy