30 May
1997
30 May
'97
12:28 a.m.
Due to massive amounts of caffeine & sleep deprivation, Paul E Coad said:
I came across some Apple II boards recently. Some I can make and
educated guess about, but others are a bit of a mystery:
[snip]
APL BOARD UNIT G479501000-0 it has an EPROM labeled
"APL", an odd
connector (15 pins) which looks like it could be for keyboard. The
board is labeled "EPSON". My guess is that this is a board which
either transformed an Apple II keyboard into an APL keyboard or
allowed an APL keyboard to be used.
Everyone here who likes APL, please raise your hand!
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LEGO 9767. This board features a 6522 and a 20 wire
ribbon cable.
The board is labeled "FOR EDUCATIONAL USF" (the F is not a typo).
This one has 3 chips, 2 capacitors, 1 resistor, and a transistor.
I'm guessing that this is for controlling Lego motors and switches.
cool!
The last one is an IBM type card which was with the
Apple cards. It
has 2 9 pin female connectors and an RCA type jack. The board has the
words "DIAMOND COMPUTER SYSTEMS INC" and "TRACKSTAR 128 TM" silk
screened on the board. There are two EPROMs, a 6502, 65SC02, 2 EPROMs,
8 socketed AMPAL16L8LPCs (memory?). There is another socketed IC
which is labeled DISK. I'm guessing that this is some sort of Apple II
on an ISA card.
Yes, sir! That's the card. If you'd like more info, I *think* these are
detailed in my 1989 Tandy Computer Catalog I have at home... they used to
market these things to try to get a little more TRS- market share. I
honestly can't say how good they were, and (IIRC... it's been a while) you
do have to have an apple disk drive as the drives are not compatible with
the IBM standard, but other than that, it *was* an interesting upgrade path
for all you ol' Apple ]['ers out there.
Sorry, I worked on them in high school... I don't hold that fascination
with them that many of you here do... Non-linear video memory just seemed
"weird" to me for some reason. It was a good system, but just not my cup of
tea.
Anywho, If you're interested in that article, let me know and I'll try to
dig it up over the weekend.
HTH,
"Merch"
--
Roger Merchberger | If at first you don't succeed,
Programmer, NorthernWay | nuclear warhead disarmament should
zmerch(a)northernway.net | *not* be your first career choice.