7 Aug
2000
7 Aug
'00
6:49 p.m.
Eric Smith <eric(a)brouhaha.com> said:
The //c disk controller is for all reasonable intents
and purposes the same
as the Disk ][ controller used in the Apple ][ and ][+, simply with a
different connector pinout (D-subminature 19 pin instead of a 2x10 header).
It's reduced from seven chips to one, but functions the same.
In fact I remember about 1988, buying a small connector from Jameco. It
had
pins on both sides almost like a wire wrap header. (I seem to me that
the pins
were straight through). One side plugged into the //c floppy port and
the
other side plugged into the ribbon cable from the Apple ][ drive. And
it
cost two or three dollars. I couldn't find it on their web site just
now,
but I was surprised to see that they still sell power supplies for the
Apple ][,][+,][e.
--Doug
====================================================
Doug Coward
Curator
Analog Computer Museum and History Center
http://www.best.com/~dcoward/analog
====================================================
8 Aug
8 Aug
1:54 a.m.
Now, THAT would be a handy part to have available at tne moment. Since it
apparent'y translates from the IIc's floppy port to the DISK-][ cable, it
would serve to move those same signals and supplies to an arbitrary
location.
I was just contemplating how I'd have to cut a DB25P IDC in two and mill off
6 pins' worth of connector and then glue it back together in order to make
it fit the IIc's floppy port. Too bad JameCo doesn't list that number any
longer. What I'll probably end up doing is soldering 19 appropriately
located pins into a PCB scrap intended for a DB25 and then soldering the
wires to the pins. It's unlikely I'll find an appropriately sized shell.
Dick
----- Original Message -----
From: Doug Coward <mranalog(a)home.com>
To: <classiccmp(a)classiccmp.org>
Sent: Tuesday, August 08, 2000 12:49 AM
Subject: Re: Apple IIc (not IIC+) details
Eric Smith <eric(a)brouhaha.com> said:
> The file://c disk controller is for all reasonable intents and purposes
the
same
> as the Disk ][ controller used in the Apple ][
and ][+, simply with a
> different connector pinout (D-subminature 19 pin instead of a 2x10
header).
It's
reduced from seven chips to one, but functions the same.
In fact I remember about 1988, buying a small connector from Jameco. It
had
pins on both sides almost like a wire wrap header. (I seem to me that
the pins
were straight through). One side plugged into the file://c floppy port and
the
other side plugged into the ribbon cable from the Apple ][ drive. And
it
cost two or three dollars. I couldn't find it on their web site just
now,
but I was surprised to see that they still sell power supplies for the
Apple ][,][+,][e.
--Doug
====================================================
Doug Coward
Curator
Analog Computer Museum and History Center
http://www.best.com/~dcoward/analog
====================================================
7:37 p.m.
Hello Richard
On 08-Aug-00, you wrote:
Now, THAT would be a handy part to have available at
tne moment. Since it
apparent'y translates from the IIc's floppy port to the DISK-][ cable, it
would serve to move those same signals and supplies to an arbitrary
location.
I was just contemplating how I'd have to cut a DB25P IDC in two and mill
off
6 pins' worth of connector and then glue it back
together in order to make
it fit the IIc's floppy port. Too bad JameCo doesn't list that number any
longer. What I'll probably end up doing is soldering 19 appropriately
located pins into a PCB scrap intended for a DB25 and then soldering the
wires to the pins. It's unlikely I'll find an appropriately sized shell.
If you are looking for a DB-19 connector check with Gateway Electronics in
St. Louis. They have them in stock, male and female, and matching hoods.
--
Gary Hildebrand
Box 6184
St. Joseph, MO 64506-0184
816-662-2612
or
ghldbrd(a)ccp.com
2:14 p.m.
Yes, I'll do that, largely because they have a branch here in Denver and
I've known Stu and Lou for over 25 years and know they'll sell whatever at
top $$$.
The connectors I've seen in the Denver store are the solder-type and I'd
prefer the IDC type if available. Since the IDC connectors are plastic it's
really easy to set one up in a milling machine and take an appropriately
large chunk out of the middle, gluing the two halves back together
afterward. I've done that several times when odd-sized connectors were
needed.
Since I'm in the prototyping business, I do whatever I can to make my stuff
look like it was "meant to be that way," thereby avoiding the Rube Goldberg
look.
If they haven't got 'em in stock I'll have the boys call St. Louis and get
me a set.
Thanx for the info.
Dick
----- Original Message -----
From: Gary Hildebrand <ghldbrd(a)ccp.com>
To: <classiccmp(a)classiccmp.org>
Sent: Wednesday, August 09, 2000 1:37 AM
Subject: Re: Apple IIc (not IIC+) details
make
Hello Richard
On 08-Aug-00, you wrote:
> Now, THAT would be a handy part to have available at tne moment. Since
it
> apparent'y translates from the IIc's
floppy port to the DISK-][ cable,
it
would serve to
move those same signals and supplies to an arbitrary
location.
I was just contemplating how I'd have to cut a DB25P IDC in two and mill
off
> 6 pins' worth of connector and then glue it back together in order to
> it fit the IIc's floppy port. Too bad JameCo
doesn't list that number
any
> longer. What I'll probably end up doing is
soldering 19 appropriately
> located pins into a PCB scrap intended for a DB25 and then soldering the
> wires to the pins. It's unlikely I'll find an appropriately sized
shell.
If you are looking for a DB-19 connector check with Gateway Electronics in
St. Louis. They have them in stock, male and female, and matching hoods.
--
Gary Hildebrand
Box 6184
St. Joseph, MO 64506-0184
816-662-2612
or
ghldbrd(a)ccp.com
8903
days inactive
8903
days old
3 comments
3 participants
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ghldbrd＠ccp.com -
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