20 Feb
2010
20 Feb
'10
7:23 p.m.
I'm looking for a VT100 advanced video option board. Or, failing that, if anyone has a
.100 spacing, 50 pin dual row female connector so I can makes one...
The circuit is really simple, it's just a plug-in board that gives the VT100 some
extra RAM so it can display 24 lines of text in 132 column mode, and do some extra
character attributes. I cooked up plans to build my own based on the schematics in the
printset (and using some newer SRAMs), but when I actually pulled the logic board out of
the terminal I realized that the header connector it plugs into is a stupid spacing - .1
instead of the usual .156.
-Ian
20 Feb
20 Feb
11:10 p.m.
On Sat, Feb 20, 2010 at 7:23 PM, Mr Ian Primus <ian_primus at yahoo.com> wrote:
I'm looking for a VT100 advanced video option
board. Or, failing that, if anyone has a .100 spacing, 50 pin dual row female connector so
I can makes one...
Is this part compatible with what you need?
EDAC 341-050-520-202
http://www.edac.net/file_library/series/49_341%20391.pdf
Mouser has those in stock for $3.66 each.
21 Feb
21 Feb
6:45 a.m.
--- On Sun, 2/21/10, Glen Slick <glen.slick at gmail.com> wrote:
Is this part compatible with what you need?
EDAC 341-050-520-202
http://www.edac.net/file_library/series/49_341%20391.pdf
Mouser has those in stock for $3.66 each.
Unfortunately, it's not an edge connector, it's a header type connector. A dual
row of pins on the board, spaced at .100. So, imagine a SCSI ribbon connector, but spaced
at .100 instead of .156.
-Ian
I'm
looking for a VT100 advanced video option board.
Or, failing that, if anyone has a
.100 spacing, 50 pin dual
row female connector so I can makes one...
10:33 a.m.
Unfortunately, it's not an edge connector,
it's a header type
connector. A dual row of pins on the board, spaced at .100. So, imagine
a SCSI ribbon connector, but spaced at .100 instead of .156.
Err, SCSI connectors (the ones you find on intenral drives, anyway) _are_
0.1" spacing
-tony
22 Feb
22 Feb
5:59 p.m.
I have some AVO's and PPO's areund here somewhere. I' lll try to find them
this week.
Drop me a email off list if you need either.
Paul
On Sun, Feb 21, 2010 at 12:33 PM, Tony Duell <ard at p850ug1.demon.co.uk>wrote:
Unfortunately,
it's not an edge connector, it's a header type
connector. A dual row of pins on the board, spaced at .100. So, imagine
a SCSI ribbon connector, but spaced at .100 instead of .156.
Err, SCSI connectors (the ones you find on intenral drives, anyway) _are_
0.1" spacing
-tony
21 Feb
21 Feb
6:47 a.m.
--- On Sun, 2/21/10, Glen Slick <glen.slick at gmail.com> wrote:
Hehe. Correction. It's .156 spacing instead of .100 spacing... That's what I get
for sending email when tired. If it was .100, it would be easy :)
-Ian
I'm
looking for a VT100 advanced video option board.
Or, failing that, if anyone has a
.100 spacing, 50 pin dual
row female connector so I can makes one... 
7:09 a.m.
New subject: EPROM programmer
Hi
Does anyone use a PC-UPROG programmer. I picked one up
a while back and down loaded code from the web.
It runs all the checks but the program hangs when I try
to do any operation like read the device.
I was hoping someone else had the code to ensure that
my code was working correctly.
Dwight
_________________________________________________________________
Hotmail: Free, trusted and rich email service.
http://clk.atdmt.com/GBL/go/201469228/direct/01/
10:32 a.m.
I'm looking for a VT100 advanced video option board. Or, failing that,
if anyone has a .100 spacing, 50 pin dual row female connector so I can
makes one...
The circuit is really simple, it's just a plug-in board that gives the
VT100 some extra RAM so it can display 24 lines of text in 132 column
mode, and do some extra character attributes. I cooked up plans to build
my own based on the schematics in the printset (and using some newer
SRAMs), but when I actually pulled the logic board out of the terminal I
realized that the header connector it plugs into is a stupid spacing -
.1 instead of the usual .156.
Haven;'t you got that last part backwards? The common 2-row pin headers
are 0.1" pitch. IIRC the header for the Advanced Video Option is wider
spacing, quite possibly 0.156", but I would measure it before tying to
get something to fit (DEC also used 0.125" pitch connectors...)
-tony
5368
days inactive
5370
days old
8 comments
6 participants
participants (6)
-
ard＠p850ug1.demon.co.uk -
dkelvey＠hotmail.com -
emu＠e-bbes.com -
glen.slick＠gmail.com -
ian_primus＠yahoo.com -
useddec＠gmail.com