8 Dec
2011
8 Dec
'11
7:18 p.m.
Bill Sudbrink wrote:
I'm thinking of building a "somewhat
vintage" two-channel DAC board,
intended to drive an oscilloscope as a vector display.
Chuck Guzis wrote:
Well, if you want "vintage" (and I assume
you do) there was at least
one such project in an old issue of Byte or Kilobaud (IIRC).
"Build the Beer Budget Graphics Interface" by Peter Nelson, in the November 1976
Byte, is a simple point-plot display.
"Make Your Next Peripheral a Real Eye Opener" by Steve Ciarcia, in the November
1976 Byte, with errata in the March 1977 Byte, is a vector display.
"Microvec: The Other Type of Video Display" by Billy Garrett, in the November
1982 Byte, takes the Ciarcia "Eye Opener" design (completely uncredited!) and
adds a Z-80 processor system to turn it into a peripheral with a parallel interface.
Apparently Garrett won third prize in an IEEE Region 3 Student Paper Contest; I wonder if
the paper submitted to IEEE credited Ciarcia?
Eric