21 Dec
2006
21 Dec
'06
11:40 a.m.
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