1 Apr
2002
1 Apr
'02
3:20 p.m.
I've got a card out of an Apple IIe that has a bunch of 7400 chips on it,
a 4-switch dip switch, a 26pin header, and an EPROM with a label that says
"GPC" on it. The board also has "GPC" and "519"
silk-screened on the
comonent side and "Made in Taiwan R.O.C." on the solder side. Google
doesnt seem to reveal anything useful.
Any ideas what this is?
1 Apr
1 Apr
4:48 p.m.
On Tue, 2 Apr 2002 pat(a)cart-server.purdueriots.com wrote:
I've got a card out of an Apple IIe that has a
bunch of 7400 chips on it,
a 4-switch dip switch, a 26pin header, and an EPROM with a label that says
"GPC" on it. The board also has "GPC" and "519"
silk-screened on the
comonent side and "Made in Taiwan R.O.C." on the solder side. Google
doesnt seem to reveal anything useful.
Any ideas what this is?
Which chips does it have on it? The best guess I can come up with based on
the header, is a floppy disk or printer interface card. Also, how is the
header positioned on the board?
-Toth
2 Apr
2 Apr
6:14 a.m.
Here's some quick ASCII art:
+---------------------------------------+
| GPC | SW | |
| _ _ _ ___ _---- _ _ |
| | | | | | | | | | | | | | | |=|
| |A| |C| |E| | | | | | | | | |=|
| |_| |_| |_| | G | |H| | |I| | |=|
| _ _ _ | | |_| | |_| | |=|
| | | | | | | | | |_|=|
| |B| |D| |F| |___| 519 |
| |_| |_| |_| S/N026914 |
|_________________ ___|
|||||||||||||||||||
A - 74LS02
B - 74LS86
C - 74LS08
D - 74LS138
E - 74LS133
F - 74LS279
G - HN462732G EPROM, Label with GPC on it
H - 74LS244
I - 74LS374
Bar between H+I is an "A102J" resistor pack (1kohm?)
The header is next to I, right angle (pins parallel to board)
Two rows of pins, total of 26 pins.
SW is a 4-position SPST dip switch
-- Pat
On Tue, 2 Apr 2002, Tothwolf wrote:
On Tue, 2 Apr 2002 pat(a)cart-server.purdueriots.com
wrote:
I've got a card out of an Apple IIe that has
a bunch of 7400 chips on it,
a 4-switch dip switch, a 26pin header, and an EPROM with a label that says
"GPC" on it. The board also has "GPC" and "519"
silk-screened on the
comonent side and "Made in Taiwan R.O.C." on the solder side. Google
doesnt seem to reveal anything useful.
Any ideas what this is?
Which chips does it have on it? The best guess I can come up with based on
the header, is a floppy disk or printer interface card. Also, how is the
header positioned on the board?
-Toth
10:32 a.m.
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5:25 p.m.
On Tue, 2 Apr 2002 pat(a)cart-server.purdueriots.com wrote:
<snip>
Bar between H+I is an "A102J" resistor pack
(1kohm?)
The header is next to I, right angle (pins parallel to board)
Two rows of pins, total of 26 pins.
SW is a 4-position SPST dip switch
Looks like a parallel printer card. The dip switch would be used for
enabling/disabling different modes of operation for different printers.
You could probably make up a cable for it from a 26 pin IDC ribbon cable
connector, 6ft or so of 26 conductor ribbon cable, and a 36 pin IDC
centronics-style connector. Since it uses a 26 conductor cable, I don't
think you'd even have to fan out the cable at the 36 pin connector. You
would have to make sure to get the pin 1 orientation right for both
connectors.
-Toth
1 Apr
1 Apr
6:38 p.m.
On Tue, 2 Apr 2002 pat(a)cart-server.purdueriots.com wrote:
I've got a card out of an Apple IIe that has a
bunch of 7400 chips on it,
a 4-switch dip switch, a 26pin header, and an EPROM with a label that says
"GPC" on it. The board also has "GPC" and "519"
silk-screened on the
comonent side and "Made in Taiwan R.O.C." on the solder side. Google
doesnt seem to reveal anything useful.
It's probably a parallel printer controller.
Sellam Ismail Vintage Computer Festival
------------------------------------------------------------------------------
International Man of Intrigue and Danger http://www.vintage.org
* Old computing resources for business and academia at www.VintageTech.com *
2 Apr
2 Apr
3:29 a.m.
New subject: Network Baluns
I have the following which are free for the cost of 1.2 x shipping cost.
5 - Type 1 Baluns w/ Dual BNC Connectors
30+ - Type 1 Baluns w/ Single BNC Connnector, IBM P/N 6339082
30+ - T&B Nevada Western RG-62 to UTP Cable Baluns
3:51 a.m.
New subject: Digital Networks & Communications Buyer's Guide, Networks
I have the 1989 January - June DEC Networks * Communications Buyer's
Guide, Networks free for the cost of 1.2 x shipping cost. The condition
is a bit ragged on the outside 1" or so of the edges as it looks like it
got wet. However, it looks like the rest of the book is fine.
3:58 a.m.
New subject: Commodore 1701 Monitor, 1741 disk drives
I have a Commodore 1701 Monitor for sale at $15.00 plus shipping. I've
also got at least three 1741 disk drives for sale at $5.00 each plus
shipping.
4:19 a.m.
New subject: NCR Tape Drive
As you might guess from the earlier posts, I am "cleaning up" stuff that
I neither want nor need :). I have an NCR SCSI tape drive for $5.00 plus
shipping. I have no idea if it works as it came from a friends office.
Cosmetically, it looks fine. A picture of it is at:
http://www.rain.org/~marvin/ncr-tape.jpg
4:41 a.m.
New subject: Commodore 1701 Monitor, 1741 disk drives
I have a Commodore 1701 Monitor for sale at $15.00
plus shipping. I've
also got at least three 1741 disk drives for sale at $5.00 each plus
shipping.
1741?
--
----------------------------- personal page: http://www.armory.com/~spectre/ --
Cameron Kaiser, Point Loma Nazarene University * ckaiser(a)stockholm.ptloma.edu
-- FORTUNE: Good day for romance, but try a single person this time. ----------
4:52 a.m.
New subject: Commodore 1701 Monitor, 1741 disk drives
Cameron Kaiser wrote:
Oops, still had the 17 in my mind from the monitor; they are 1541
drives. Thanks for questioning!
I have a Commodore 1701 Monitor for sale at
$15.00 plus shipping. I've
also got at least three 1741 disk drives for sale at $5.00 each plus
shipping.
1741? 
5:20 a.m.
New subject: Commodore 1701 Monitor, 1741 disk drives
Marvin Johnston wrote:
I have a Commodore 1701 Monitor for sale at $15.00 plus shipping. I've
also got at least three 1741 disk drives for sale at $5.00 each plus
shipping.
I presume those are 1541 disk drives . . .
Where are you, I'm in zip 64506. I fclose by, I'll just pick up . . . .
.
Gary Hildebrand
St. Joseph, MO
4:34 a.m.
New subject: Commodore 1701 Monitor, 1741 disk drives
Gary Hildebrand wrote:
Marvin Johnston wrote:
I should have added that I am located in Santa Barbara, California
93105. You are welcome though to come by and pick them up :). Also in
another two weeks, I'll be heading back east to Georgia probably along
I-40 if that helps.
I have a Commodore 1701 Monitor for sale at $15.00 plus shipping. I've
also got at least three 1741 disk drives for sale at $5.00 each plus
shipping.
I presume those are 1541 disk drives . . .
Where are you, I'm in zip 64506. I fclose by, I'll just pick up . . . .
8300
days inactive
8302
days old
13 comments
7 participants
participants (7)
-
ard＠p850ug1.demon.co.uk -
foo＠siconic.com -
ghldbrd＠ccp.com -
marvin＠rain.org -
pat＠cart-server.purdueriots.com -
spectre＠stockholm.ptloma.edu -
tothwolf＠concentric.net