23 Feb
2007
23 Feb
'07
4:24 p.m.
Al Kossow wrote:
Hear hear!!
Peace... Sridhar
-- html links to eBay auctions clipped.
"magnetic and coils from the old diskdrives" aren't what you'll find
in commodity discs today. I assume he's asking about linear motors
I have
see some disk drives on your homepage and want to ask you if
sale the magnetic and coils from the old diskdrives?
no from large drives, circa '85 and earlier, which
have mostly gone into
landfills.
A linear motor from an early 80's drive is on the order of 4" x 8" with
a pretty massive casting.
23 Feb
23 Feb
7:53 p.m.
On 2/23/07, Al Kossow <aek at bitsavers.org> wrote:
right and those search results were within ebay's vintage computing area ;-)
:-)
Al Kossow wrote:
Hear hear!!
Peace... Sridhar
-- html links to eBay auctions clipped.
"magnetic and coils from the old diskdrives" aren't what you'll find
in commodity discs today. I assume he's asking about linear motors
from large drives, circa '85 and earlier, which have mostly gone into
landfills.
A linear motor from an early 80's drive is on the order of 4" x 8" with
a pretty massive casting.
I have
see some disk drives on your homepage and want to ask you if
sale the magnetic and coils from the old diskdrives?
no 
8:23 p.m.
New subject: Restoring an XT - transfer problem
Hoping someone may be able to help - I've rebuilt an old Commodore PC 5 (XT
compatible) back to working condition. Now the problem is getting anything
on to the machine. None of my current machines are capable of supporting a
5.25" drive (of any flavour) so I can't easily transfer using that method.
However, I have installed DOs 4.01 to the C= & it includes GW Basic & I have
linked up that machine & tyhe XP box via a null modem cable. So, all I need
is a simple terminal program on the XT & I'm pretty much in business.
Problem is, all the GW Basic sources I've found for term progs are simply
for text-based terms only, there are none around with simple transfer
abilities (ie XModem or Kermit).
Anyone have sourec available for a simple term program that'll at least gbet
me started by allowing me to transfer over smething better ?
Or any other suggestion ?
cheers,
Lance
// http://www.commodore128.org
Commodore 128 forums & more! //
8:50 p.m.
New subject: Restoring an XT - transfer problem
In article <002101c757b2$6a8c18f0$0100000a at pentium>,
"Lance Lyon" <lance.w.lyon at gmail.com> writes:
Or any other suggestion ?
You could try and find something really small here:
<ftp://ftp.simtel.net/.2/simtelnet/msdos/commprog/>
Look for a small .COM utility that just barely transfers files.
Dump it out in hex.
Type it in via the debug command as raw memory :-(
Save it to a file from debug.
Run it to bootstrap yourself into a reall comm program.
--
"The Direct3D Graphics Pipeline" -- DirectX 9 draft available for download
<http://www.xmission.com/~legalize/book/download/index.html>
Legalize Adulthood! <http://blogs.xmission.com/legalize/>
9:10 p.m.
New subject: Restoring an XT - transfer problem
On 24 Feb 2007 at 12:23, Lance Lyon wrote:
Hoping someone may be able to help - I've rebuilt
an old Commodore PC 5 (XT
compatible) back to working condition. Now the problem is getting anything
on to the machine. None of my current machines are capable of supporting a
5.25" drive (of any flavour) so I can't easily transfer using that method.
Or any other suggestion ?
Why not simply hook up a 3.5" drive (DSHD is fine)? Get a DS2D
diskette by covering over the density aperture in a DSHD diskette and
format it up to 720K on your modern PeeCee using "format a: /n:9
/t:80". Write whatever you want to it and let the Commo read it.
PeeCees don't really care (for anything but formatting) if you've got
a 720K or 360K.
Alternatively, hook up a 360K 5.25" to your modern PeeCee and call it
a 1.44MB drive--format the blanks in your PC5 and your modern PC will
write them just fine.
I've done both routinely.
Cheers,
Chuck
10:06 p.m.
New subject: Restoring an XT - transfer problem
Hiya Chuck,
From: "Chuck Guzis" <cclist at sydex.com>
To: "General Discussion: On-Topic and Off-Topic Posts"
<cctalk at classiccmp.org>
Sent: Saturday, February 24, 2007 1:10 PM
Subject: Re: Restoring an XT - transfer problem
Why not simply hook up a 3.5" drive (DSHD is
fine)? Get a DS2D
diskette by covering over the density aperture in a DSHD diskette and
format it up to 720K on your modern PeeCee using "format a: /n:9
/t:80". Write whatever you want to it and let the Commo read it.
The PC5 will not recognise a 3.5" disk, even using driver.sys to set the
parameters it always gives a "device
not ready" error.
Alternatively, hook up a 360K 5.25" to your
modern PeeCee and call it
a 1.44MB drive--format the blanks in your PC5 and your modern PC will
write them just fine.
No go, 3 different machines, 5 different drives - all the same error -
"Sector not found".
cheers,
Lance
// http://www.commodore128.org
Commodore 128 forums & more! //
10:25 p.m.
New subject: Restoring an XT - transfer problem
On Sat, 24 Feb 2007, Lance Lyon wrote:
Try masking off pin 34.
"sector not found" is usually an error with a diskette.
not handling that disk format would usually give you, "general failure"
(wrong density)
Why not simply
hook up a 3.5" drive (DSHD is fine)? Get a DS2D
diskette by covering over the density aperture in a DSHD diskette and
format it up to 720K on your modern PeeCee using "format a: /n:9
/t:80". Write whatever you want to it and let the Commo read it.
The PC5
will not recognise a 3.5" disk, even using driver.sys to set the
parameters it always gives a "device
not ready" error. Alternatively,
hook up a 360K 5.25" to your modern PeeCee and call it
a 1.44MB drive--format the blanks in your PC5 and your modern PC will
write them just fine.
No go, 3 different machines, 5 different drives - all the
same error -
"Sector not found".
24 Feb
24 Feb
12:29 a.m.
New subject: Restoring an XT - transfer problem
On 23 Feb 2007 at 19:34, Fred Cisin wrote:
I'll check--if so, a laplink parallel cable will work for parallel-to-
parallel port transfers.
I always thought that interlink was a blatant ripoff of laplink.
Cheers,
Chuck
Or any other
suggestion ?
didn't 4.0x include something called "interlink"? 
12:30 a.m.
New subject: Restoring an XT - transfer problem
Hoping someone may be able to help - I've rebuilt
an old Commodore PC 5
(XT
compatible) back to working condition. Now the problem
is getting anything
on to the machine. None of my current machines are capable of supporting a
5.25" drive (of any flavour) so I can't easily transfer using that method.
However, I have installed DOs 4.01 to the C= & it includes GW Basic & I
have
linked up that machine & tyhe XP box via a null
modem cable. So, all I
need
is a simple terminal program on the XT & I'm
pretty much in business.
Problem is, all the GW Basic sources I've found for term progs are simply
for text-based terms only, there are none around with simple transfer
abilities (ie XModem or Kermit).
Now this is going to sound very vague, but perhaps it'll jog someone else's
memory. Once upon a time, it was possible to buy a serial file transfer
package that supported transfer to/from MS-DOS machines with no removable
media, e.g. machines with dead floppy drives, so long as they were able to
load MS-DOS or similar in some way. The process went something like this:
1. Make sure the two machines have compatible RS232 settings.
2. Connect the two machines with a null-modem cable.
3. On the driveless machine ('client'), type a short command that
effectively mapped the serial port to the console.
4. On the 'server' machine, run the transfer software, selecting the option
that sends the software to the client machine. The server would then upload
and start the client software - instant networking.
The downside - I don't remember which package it was that did this. LapLink?
XTLink? Google wasn't helpful in this case.
Mike.
12:37 a.m.
New subject: Restoring an XT - transfer problem
On 24 Feb 2007 at 14:06, Lance Lyon wrote:
Should work unless you're doing something funny. 3.5" DS2D diskettes
(not DSHD) share the same data rate as 360Ks. Only the number of
cylinders differs--oh, and the 5.25" 360K drive won't do high-
density. The only other reason that I can think of getting a SNF
error is that you're using a really really old 5.25" drive that can't
step at a 4 msec rate.
Cheers,
Chuck
The PC5 will not recognise a 3.5" disk, even
using driver.sys to set the
parameters it always gives a "device not ready" error.
What Fred said about pin 34. Also, make sure that the 3.5 is
jumpered right--I don't know how closely the Commodore followed
standard PC conventions.
Alternatively,
hook up a 360K 5.25" to your modern PeeCee and call it
a 1.44MB drive--format the blanks in your PC5 and your modern PC will
write them just fine.
No go, 3 different machines, 5 different drives - all the same error -
"Sector not found". 
12:51 a.m.
New subject: Restoring an XT - transfer problem
Fred Cisin wrote:
didn't 4.0x include something called
"interlink"?
I am thinking interlnk/intersvr didn't turn up 'til MS-DOS 6.0. I
used to use them to back up my HP100LX (with the 100LX running
INTERSVR.EXE under its in-ROM MS-DOS 5.0), and I'm thinking they
weren't available 'til I upgraded the desktop PC from MS-DOS 5.0 to
MS-DOS 6.
-Frank McConnell
1:14 a.m.
New subject: Restoring an XT - transfer problem
The PC5 will
not recognise a 3.5" disk, even using driver.sys to set the
parameters it always gives a "device not ready" error.
What Fred said
about pin 34. Also, make sure that the 3.5 is
jumpered right--I don't know how closely the Commodore followed
standard PC conventions.
1:15 a.m.
New subject: Restoring an XT - transfer problem
On Fri, 23 Feb 2007, Frank McConnell wrote:
I am thinking interlnk/intersvr didn't turn up
'til MS-DOS 6.0. I
used to use them to back up my HP100LX (with the 100LX running
INTERSVR.EXE under its in-ROM MS-DOS 5.0), and I'm thinking they
weren't available 'til I upgraded the desktop PC from MS-DOS 5.0 to
MS-DOS 6.
Was the RCV35 (or whatever it was called) from PC-DOS 3.30 present in
MS-DOS? (used for transferring files from 5.25" PCs to 3.5" PS/2s)
2:14 a.m.
New subject: Restoring an XT - transfer problem
Lance Lyon wrote:
Anyone have sourec available for a simple term program
that'll at least
gbet me started by allowing me to transfer over smething better ?
PC-Talk, the great original. Hopefully it's GWBASIC compatible, and
supports x-modem so you can get something more decent over the line (my
first suggestion is zmodem).
--
Jim Leonard (trixter at oldskool.org) http://www.oldskool.org/
Help our electronic games project: http://www.mobygames.com/
Or check out some trippy MindCandy at http://www.mindcandydvd.com/
A child borne of the home computer wars: http://trixter.wordpress.com/
2:16 a.m.
New subject: Restoring an XT - transfer problem
Fred Cisin wrote:
On Sat, 24 Feb 2007, Lance Lyon wrote:
Try masking off pin 34.
Why would that make a difference, if Chuck does the former routinely?
What does pin 34 do?
--
Jim Leonard (trixter at oldskool.org) http://www.oldskool.org/
Help our electronic games project: http://www.mobygames.com/
Or check out some trippy MindCandy at http://www.mindcandydvd.com/
A child borne of the home computer wars: http://trixter.wordpress.com/
Why not
simply hook up a 3.5" drive (DSHD is fine)? Get a DS2D
diskette by covering over the density aperture in a DSHD diskette and
format it up to 720K on your modern PeeCee using "format a: /n:9
/t:80". Write whatever you want to it and let the Commo read it.
The PC5
will not recognise a 3.5" disk, even using driver.sys to set the
parameters it always gives a "device
not ready" error.
2:17 a.m.
New subject: Restoring an XT - transfer problem
Fred Cisin wrote:
On Fri, 23 Feb 2007, Frank McConnell wrote:
I have never heard of that at all -- What was the exact name, and why
was it necessary? I have PC DOS 3.3 here but I don't see anything like
what you're describing...
--
Jim Leonard (trixter at oldskool.org) http://www.oldskool.org/
Help our electronic games project: http://www.mobygames.com/
Or check out some trippy MindCandy at http://www.mindcandydvd.com/
A child borne of the home computer wars: http://trixter.wordpress.com/
I am thinking interlnk/intersvr didn't turn
up 'til MS-DOS 6.0. I
used to use them to back up my HP100LX (with the 100LX running
INTERSVR.EXE under its in-ROM MS-DOS 5.0), and I'm thinking they
weren't available 'til I upgraded the desktop PC from MS-DOS 5.0 to
MS-DOS 6.
Was the RCV35 (or whatever it was called) from PC-DOS 3.30 present in
MS-DOS? (used for transferring files from 5.25" PCs to 3.5" PS/2s)
2:18 a.m.
New subject: Restoring an XT - transfer problem
Frank McConnell wrote:
Fred Cisin wrote:
I could've sworn it was 5.0 actually.
interlnk/intersvr were the final form of FastLynx, which I still use
occaisionally to this day to get stuff between machines. Still have the
"high-speed" parallel cable too :)
--
Jim Leonard (trixter at oldskool.org) http://www.oldskool.org/
Help our electronic games project: http://www.mobygames.com/
Or check out some trippy MindCandy at http://www.mindcandydvd.com/
A child borne of the home computer wars: http://trixter.wordpress.com/
didn't 4.0x include something called
"interlink"?
I am thinking interlnk/intersvr didn't turn up 'til MS-DOS 6.0. I
2:19 a.m.
New subject: Restoring an XT - transfer problem
Chuck Guzis wrote:
I always thought that interlink was a blatant ripoff
of laplink.
It was (FastLynx) but, having used both, the full-blown FastLynx (with
an interface and more options) was a much better program.
--
Jim Leonard (trixter at oldskool.org) http://www.oldskool.org/
Help our electronic games project: http://www.mobygames.com/
Or check out some trippy MindCandy at http://www.mindcandydvd.com/
A child borne of the home computer wars: http://trixter.wordpress.com/
2:48 a.m.
New subject: Restoring an XT - transfer problem
On 24 Feb 2007 at 1:16, Jim Leonard wrote:
It's disk change--but the PC5 should be blind to it. Another
possibility is that the PC5 might require a READY\ signal, which was
supplied on the same pin. I'm just not familiar with the ins and
outs of the PC5. Regardless, there's no difference between recording
on 720K and a 5.25".360K. I'd inspect jumpers first, then see if
pin 34 on the cable goes anywhere.
Cheers,
Chuck
Try masking
off pin 34.
Why would that make a difference, if Chuck does the former routinely?
What does pin 34 do?
3:27 a.m.
New subject: Restoring an XT - transfer problem
Fred Cisin wrote:
On Fri, 23 Feb 2007, Frank McConnell wrote:
Not that I recall. And thinking about it some more, I may have this
cross-threaded with when CONFIG.SYS menus turned up, because that
was a part of the process too (plug in the 100LX running INTERSVR and
reboot the PC to select the startup that loads INTERLNK).
-Frank McConnell
I am thinking interlnk/intersvr didn't turn
up 'til MS-DOS 6.0. I
used to use them to back up my HP100LX (with the 100LX running
Was the RCV35 (or whatever it was called) from PC-DOS 3.30 present in
MS-DOS? (used for transferring files from 5.25" PCs to 3.5" PS/2s) 
4:05 a.m.
New subject: Old Atari Video Pinball machine (c) 1977 (OT?)
For those who collect Console Games, I came across this which may be of
interest. It is supposedly NIB.
http://www.shopgoodwill.com/viewitem.asp?ItemID=2540866
Hope this helps someone out.
Greg
5:16 a.m.
New subject: Restoring an XT - transfer problem
Hoping someone may be able to help - I've rebuilt
an old Commodore PC 5 (XT
compatible) back to working condition. Now the problem is getting anything
on to the machine. None of my current machines are capable of supporting a
5.25" drive (of any flavour) so I can't easily transfer using that method.
However, I have installed DOs 4.01 to the C= & it includes GW Basic & I have
linked up that machine & tyhe XP box via a null modem cable. So, all I need
is a simple terminal program on the XT & I'm pretty much in business.
Problem is, all the GW Basic sources I've found for term progs are simply
for text-based terms only, there are none around with simple transfer
abilities (ie XModem or Kermit).
Anyone have sourec available for a simple term program that'll at least gbet
me started by allowing me to transfer over smething better ?
Or any other suggestion ?
- Borrow the drive from the Commodore and attach to another machine long enough
to write the files you need.
- Attach a 3.5" drive to the Commodore.
- Try INTERLINK which was distributed with DOS 6.0 - I don't think I've ever
tried
it with DOS 4, but it works fine with DOS 5. It has a /RCOPY option which will
let you install it from a host PC without having to move it on a disk. I doubt
it will run under XP however.
- Use CTTY to redirect your console to the serial port, then write a program on
the host PC poke a .COM transfer program into memory using DEBUG and save it.
- You might want to consider picking up an old DOS (or Win9x) box - they can usually
be had for free or close to it. XP is very limiting when it comes to communicating
with things that MicroSloth doesn't wish to support.
Dave
--
dave06a (at) Dave Dunfield
dunfield (dot) Firmware development services & tools: www.dunfield.com
com Collector of vintage computing equipment:
http://www.classiccmp.org/dunfield/index.html
6:07 a.m.
New subject: Restoring an XT - transfer problem
On Sat, 2007-02-24 at 18:30 +1300, Mike van Bokhoven wrote:
Now this is going to sound very vague, but perhaps
it'll jog someone else's
memory. Once upon a time, it was possible to buy a serial file transfer
package that supported transfer to/from MS-DOS machines with no removable
media, e.g. machines with dead floppy drives, so long as they were able to
load MS-DOS or similar in some way. The process went something like this:
1. Make sure the two machines have compatible RS232 settings.
2. Connect the two machines with a null-modem cable.
3. On the driveless machine ('client'), type a short command that
effectively mapped the serial port to the console.
4. On the 'server' machine, run the transfer software, selecting the option
that sends the software to the client machine. The server would then upload
and start the client software - instant networking.
IIRC this was Laplink, using a serial cable. You entered CTTY COM1
which would switch the console to using the serial port, and then the
remote Laplink would bootstrap itself and do a CTTY CON to give the
console back.
I can't remember exactly how it did this, maybe it did a COPY COM1
LL.COM and had a bootstrap that would copy over a 7-bit link.
You could use this method to enter in a larger program, by dumping it in
hex, converting it to a DEBUG script with lots of E commands and then
pushing it in (assuming you have DEBUG available).
--
Lawrence Wilkinson lawrence at ljw.me.uk
The IBM 360/30 page http://www.ljw.me.uk/ibm360
4:53 p.m.
New subject: Restoring an XT - transfer problem
Try masking
off pin 34.
Why would that make a difference, if Chuck does the former routinely?
What does pin 34 do?
5:03 p.m.
New subject: Restoring an XT - transfer problem
> Was the RCV35 (or whatever it was called) from
PC-DOS 3.30 present in
> MS-DOS? (used for transferring files from 5.25" PCs to 3.5" PS/2s)
On Sat, 24 Feb 2007, Jim Leonard wrote:
I have never heard of that at all -- What was the
exact name, and why
was it necessary? I have PC DOS 3.3 here but I don't see anything like
what you're describing...
RECV35.COM
It was part of the IBM "Data Migration Facility", which was used to get
files into PS/2s. RECV35.COM was bundled with the PS/2s. It was a sorta
predecessor to Laplink. Note: it was a predecessor in terms of quality
and features, disunirregardless of whether it came AFTER Laplink.
http://www.gilanet.com/ohlandl/floppy/Data_Migration_Facility.html
has the RECV35.COM , the COPY35.COM , pinout for the cable adapter, and
instructions.
It required that the receiving machine have a bi-directional printer port.
The PS/2s did, and most of the non-bidirectional printer ports could be
trivially modified (one cut, one jumper) to be able to tri-state the data
lines.
--
Grumpy Ol' Fred cisin at xenosoft.com
5:22 p.m.
New subject: Restoring an XT - transfer problem
> Was the RCV35 (or whatever it was called) from
PC-DOS 3.30 present in
> MS-DOS? (used for transferring files from 5.25" PCs to 3.5" PS/2s)
On Sat, 24 Feb 2007, Frank McConnell wrote:
Not that I recall. And thinking about it some more, I
may have this
cross-threaded with when CONFIG.SYS menus turned up, because that
was a part of the process too (plug in the 100LX running INTERSVR and
reboot the PC to select the startup that loads INTERLNK).
Ah, alas.
My dynamic RAM becomes unreliable if it isn't refreshed.
RECV35.COM might have been on the "startup" or "reference" disks of
the
PS/2s, instead of the PC-DOS 3.30 disk.
That would mean that you will need to get RECV35.COM (or equivalent
Laplink, etc.) onto the machine.
At least, with DOS on the machine, there'll be a copy of DEBUG.
--
Grumpy Ol' Fred cisin at xenosoft.com
5:31 p.m.
New subject: Restoring an XT - transfer problem
On Sat, 24 Feb 2007, Lawrence Wilkinson wrote:
I can't remember exactly how it did this, maybe it
did a COPY COM1
LL.COM and had a bootstrap that would copy over a 7-bit link.
You could use this method to enter in a larger program, by dumping it in
hex, converting it to a DEBUG script with lots of E commands and then
pushing it in (assuming you have DEBUG available).
7 bit is correct. The DOS COPY command refuses to COPY a "binary" file
from a device. There is even an error message stating
that in
COMMAND.COM. Therefore, it is necessary that the stage of the
bootstrapping that uses COPY must be a text[able] file. Fortunately, a
program that will "copy" from a device does not need to be very long.
6:34 p.m.
New subject: Restoring an XT - transfer problem
Problem is, all the GW Basic sources I've found
for term progs are simply
for text-based terms only, there are none around with simple transfer
abilities (ie XModem or Kermit).
It's been some time since I looked at this, but I thought there was a
receive-only version of Kermit written in BASIC (printed in the 'Kermit
book' if nowhere else). The idea was you typed it in and used it to
transfer the full kermit onto the target machine.
Anyone have sourec available for a simple term program
that'll at least gbet
me started by allowing me to transfer over smething better ?
Or any other suggestion ?
Where are you? Is there any other list member nearby who could stick
MS-DOS kermit onto a 5.25" disk?
Will laplink (or whatever it's called) run on that machine? I seem to
remember there was a way to transfer that onto a target machine using the
serial line only.
Can you (temporarily) cable up a 3.5" drive to the XT machine? XT
controllers should be able to handle 720K 3.5" disks.
-tony
7:19 p.m.
New subject: Restoring an XT - transfer problem
It required that the receiving machine have a
bi-directional printer port.
The PS/2s did, and most of the non-bidirectional printer ports could be
trivially modified (one cut, one jumper) to be able to tri-state the data
lines.
The original IBM Printer card (the printer-only one used in the PC and
XT), but not the MDA adapter (which also included a printer port, of
course) have 3 little solder pads in a a line at 0.1" space. 2 of them
are linked by a trace. If you cut this trace and solder a 3-pin header in
place, you can fit a jumper link. In one position the card is a normal
output-only card (the OE/ line of the '374 that drives the data lines is
grounded), in the other potiion it's bidirectional (the OE/ line is
linked to the noprmally unused output of the '174 that is the control
output port). This is, AFRAK, not shown on the schematic in the techref
for some odd reason.
-tony
9:17 p.m.
New subject: Restoring an XT - transfer problem
On 25 Feb 2007 at 0:19, Tony Duell wrote:
The original IBM Printer card (the printer-only one
used in the PC and
XT), but not the MDA adapter (which also included a printer port, of
course) have 3 little solder pads in a a line at 0.1" space. 2 of them
are linked by a trace. If you cut this trace and solder a 3-pin header in
place, you can fit a jumper link. In one position the card is a normal
output-only card (the OE/ line of the '374 that drives the data lines is
grounded), in the other potiion it's bidirectional (the OE/ line is
linked to the noprmally unused output of the '174 that is the control
output port). This is, AFRAK, not shown on the schematic in the techref
for some odd reason.
The MDA port can also be reconfigured as bidirectional, but IIRC,
it's a cut trace and a jumper. I did that with one and ran it until
its end of useful life (superceded by a Herc Plus card) without
getting into any problems with anyone using the heretofore-unused bit
5 (IIRC) in the output control register. It seems that just about
everyone assumes that said bit should be zero.
Cheers,
Chuck
25 Feb
25 Feb
3:35 p.m.
New subject: Restoring an XT - transfer problem
The MDA port can also be reconfigured as
bidirectional, but IIRC,
it's a cut trace and a jumper. I did that with one and ran it until
Sure. As can a lot of the clone printer cards. The mod is to disconnect
the OE/ pin of the data latch ('374) from ground and to connect it to the
bit 5 (?) output of the control port (nearly always a '174, and nearly
always the input of this section is already wired to the D5 line from the
ISA bus).
It's just that the IBM printer (only) card had that postion for the 3-pin
jumper header, and one of the traces going to those solder pads had no
other function other than to make the port bidirectional.
Incidentally, I once saw a clone dual serial and one parallel port card
where there was a 40 pin ASIC that implemented the first serial port and
most of the printer port (the control/status lines, for example). But the
printer data port was a separate '374 on the board (D inputs from the
data bus, Q outputs to the DB25 connector), but with no way to read it
back. It was clocked by a pin on the ASIC. Writing to that port address
latched the data into the 374 (and thus made it available to the
printer) and latched the data in a register inside the ASIC. Reading that
port address read the register inside the ASIC.
Therefore it would pass the standard printer tests, but it couldn't
detect a failure of the output latch, or a short in the cable, or... And
of course it couldn't be made bidirectional
That card ended up in somebody else's machine...
-tony
8:07 p.m.
New subject: Restoring an XT - transfer problem
Tony Duell wrote:
And the modification works on PCjr parallel printer sidecars too:
http://www.brutman.com/PCjr/parallel_port.html
Mike
The MDA port
can also be reconfigured as bidirectional, but IIRC,
it's a cut trace and a jumper. I did that with one and ran it until
Sure. As can a lot of the clone printer cards. The mod is to disconnect
the OE/ pin of the data latch ('374) from ground and to connect it to the
bit 5 (?) output of the control port (nearly always a '174, and nearly
always the input of this section is already wired to the D5 line from the
ISA bus). 
26 Feb
26 Feb
11:30 a.m.
New subject: Restoring an XT - transfer problem
Jim Leonard wrote:
Fred Cisin wrote:
Could his problem be with the fact that all modern floppy
drives are hard-set as the 'B' drive, and his machine is
looking for an "A" drive? I remember seeing some "PC like"
machines that were not wired for 'B'.
Try masking off pin 34.
Why would that make a difference, if Chuck does the former routinely?
What does pin 34 do?
12:17 p.m.
New subject: Restoring an XT - transfer problem
On 26 Feb 2007 at 9:30, Kevin Handy wrote:
Could his problem be with the fact that all modern
floppy
drives are hard-set as the 'B' drive, and his machine is
looking for an "A" drive? I remember seeing some "PC like"
machines that were not wired for 'B'.
...and there were some old controllers that could support up to 4
drives on the same cable (e.g. DTC) with the right jumpering and
cable. If the 3.5" drive is hard-set for DS1, one can either
change that on the drive PCB ("hard select is usually done with a 0-
ohm resistor and can be changed) or the cable can be changed
(easiest). When it comes to playing with 3.5" drives on older
machines, I have a cable adapter PCB that brings the most common
changes out onto separate jumpers so I can tinker with them without
having to rejumper the drive.
Since I've never played with a PC5, it's hard to say what's going on.
Fred's idea of seeing if the LED comes on is good. I'd add that one
should also check to see if the spindle's also turning.
Cheers,
Chuck
12:21 p.m.
New subject: Restoring an XT - transfer problem
Tony Duell wrote:
Best to go to the source:
http://www.columbia.edu/kermit/mskermit.html
Go to the bottom of that page, under "also see",
and then look at the link
ftp://kermit.columbia.edu/kermit/a/tcomtxt.asm
There used to be a lot of ways to get kermit on a new machine.
If you download a version of mskermit, the info might still be
there in one of the documents.
Problem is,
all the GW Basic sources I've found for term progs are simply
for text-based terms only, there are none around with simple transfer
abilities (ie XModem or Kermit).
It's been some time since I looked at this, but I thought there was a
receive-only version of Kermit written in BASIC (printed in the 'Kermit
book' if nowhere else). The idea was you typed it in and used it to
transfer the full kermit onto the target machine.
3:16 p.m.
New subject: Restoring an XT - transfer problem
Fred Cisin <cisin at xenosoft.com>
to General
Try masking off pin 34.
By masking off you simply mean disconnecting,
correct? It's not that I don't know, I'm merely
testing you.
Now this is going to sound very vague, but perhaps
it'll jog someone else's
memory. Once upon a time, it was possible to buy a
serial file transfer
package that supported
transfer to/from MS-DOS
machines with no removable
media, e.g. machines with dead floppy drives, so long
as they were able to
load MS-DOS or similar in some way. The process went
something like this: 1. Make sure the two machines have compatible RS232
settings.
2. Connect the two machines with a null-modem cable.
3. On the driveless machine ('client'), type a short
command that
effectively mapped the serial port to the console.
4. On the 'server' machine, run the transfer
software, >selecting the
option
that sends the software to the client machine. The
server would then upload
and start the client software - instant networking.
Sort of sounds like the utility that came with the
Zenith Minisport. The firmware had the ability to
"take over" the command prompt of the computer it was
attached to. Different now that I'm looking at it
again, but the intention was the same, due to the fact
that the MS came with a 2.5" floppy drive, and warez
were never supplied on that medium.
____________________________________________________________________________________
We won't tell. Get more on shows you hate to love
(and love to hate): Yahoo! TV's Guilty Pleasures list.
http://tv.yahoo.com/collections/265
3:40 p.m.
New subject: Restoring an XT - transfer problem
Rumor has it that Chris M may have mentioned these words:
Methinks Fred has forgotten more about floppy drives than you could ever
learn... ;-)
Fred Cisin
<cisin at xenosoft.com>
to General
Try masking off pin 34.
By masking off you simply mean disconnecting,
correct? It's not that I don't know, I'm merely
testing you. Sort of sounds like the utility that came with the
Zenith Minisport. The firmware had the ability to
"take over" the command prompt of the computer it was
attached to. Different now that I'm looking at it
again, but the intention was the same, due to the fact
that the MS came with a 2.5" floppy drive, and warez
were never supplied on that medium.
Minor nitpick: The MiniSport came with 2.0" floppy drive(s).
Laterz,
Roger "Merch" Merchberger
--
Roger "Merch" Merchberger | "Bugs of a feather flock together."
sysadmin, Iceberg Computers | Russell Nelson
zmerch at 30below.com |
3:47 p.m.
New subject: Restoring an XT - transfer problem
On 26 Feb 2007 at 12:16, Chris M wrote:
A bit of packing tape works just fine. Trim with an x-acto knife.
Cheers,
Chuck
Fred Cisin
<cisin at xenosoft.com>
to General
Try masking off pin 34.
By masking off you simply mean disconnecting,
correct? It's not that I don't know, I'm merely
testing you.
3:47 p.m.
New subject: Restoring an XT - transfer problem
--- Roger Merchberger <zmerch-cctalk at 30below.com>
wrote:
Moooooooo. Moooooooooo.
____________________________________________________________________________________
Do you Yahoo!?
Everyone is raving about the all-new Yahoo! Mail beta.
http://new.mail.yahoo.com
4:13 p.m.
New subject: Restoring an XT - transfer problem
--- Chuck Guzis <cclist at sydex.com> wrote:
On 26 Feb 2007 at 12:16, Chris M wrote:
A bit of packing tape works just fine. Trim with an
x-acto knife.
Most 3.5ers have header type connectors, not card
edge. I think he's going to have to snip the wire on
that particular cable. Unless of course he's using one
of those little adapter thingees with an available
card edge connector on the end of his cable. That
would be preferred.
____________________________________________________________________________________
Now that's room service! Choose from over 150,000 hotels
in 45,000 destinations on Yahoo! Travel to find your fit.
http://farechase.yahoo.com/promo-generic-14795097
Fred Cisin
<cisin at xenosoft.com>
to General
Try masking off pin 34.
By masking off you simply mean disconnecting,
correct? It's not that I don't know, I'm merely
testing you.
4:28 p.m.
New subject: Restoring an XT - transfer problem
Rumor has it that Chris M may have mentioned these words:
--- Roger Merchberger <zmerch-cctalk at
30below.com>
wrote:
Moooooooo. Moooooooooo.
Sorry; never raised cows. Raised chickens (incubated from eggs), ducks,
rabbits, pheasants, couple pigs, and a dog (but we didn't eat him), but
never a cow.
I've lost 30 pounds over the last 2 years also, so I'm currently within
military weight standards, so I doubt you're referencing my girth.
Otherwise, "What Chuck Said." The trick he mentioned in his post also works
well to disable the autostart pin on the TRS-80 Color Computer cartridges.
[[ If you're wondering about my terse & enigmatic previous message, google
for "xenocopy." Or click this: http://www.xenosoft.com/fmts.html ]]
Laterz,
--
Roger "Merch" Merchberger | "Profile, don't speculate."
SysAdmin, Iceberg Computers | Daniel J. Bernstein
zmerch at 30below.com |
4:45 p.m.
New subject: Restoring an XT - transfer problem
On 26 Feb 2007 at 13:13, Chris M wrote:
Unless of course he's using one of those little
adapter thingees with
an available card edge connector on the end of his cable. That would be
preferred.
If I remember the OP correctly, he was trying to put a 3.5" drive on
an old Commodore PC5, which was configured for 5.25" drives. He'd
almost have to use an adaptor. I don't know if a modern(?) "header-
only" cable would work.
Cheers,
Chuck
5:01 p.m.
New subject: Restoring an XT - transfer problem
--- Chuck Guzis <cclist at sydex.com> wrote:
Most 3.5ers have header type connectors, not card
edge. I think he's going to have to snip the wire on
that particular cable. Unless of course he's using one
of those little adapter thingees with an available
card edge connector on the end of his cable. That
would be preferred.
Worked! I have one of these connecters; machine now has 1.44mb flopy in it
(working as a 720k). Thanks everyone for their suggestions.
cheers,
Lance
// http://www.commodore128.org
Commodore 128 forums & more! //
5:06 p.m.
New subject: Restoring an XT - transfer problem
> >Try masking off pin 34.
>
> By masking off you simply mean disconnecting,
>correct? It's not that I don't know, I'm merely
>testing you.
Anything that will disconnect it. In the case of card edge connectors, a
small piece of plastic tape. Pin 34 is at the end, and the backside (pin
33) is a redundant ground, so you can get away with wrapping the tape
around, and then trimming with a knife.
Some of the card edge to dual row header adapters for connecting 3.5"
drives to XT cables even have a jumper to disconnect pin 34.
If you don't mind disconnecting it for both drives, you can disconnect it
at the FDC end.
Or, you can cut that wire in the cable.
Or, you can put a switch in the cable. While you are at it, put another
switch in the line for the index pulse.
If you can find one, there exist dual row header MF connectors and T's
with 34 switches in series.
Or, you can add switches or jumpers on the FDC. Might as well also put in
a push button for NMI.
If you've got an extra gate or two on the board, you could AND the signals
(READY and INDEX), and control their passage in software.
I assumed that folk here would understand "mask off" and come up with
suitable methods.
On Mon, 26 Feb 2007, Roger Merchberger wrote:
Methinks Fred has forgotten more about floppy drives
than you could ever
learn... ;-)
depends on how literally we should take that - I have forgotten a lot.
Some others on this list, such as Chuck and Allison have not been so prone
to "old-timer's" syndrome.
--
Grumpy Ol' Fred cisin at xenosoft.com
5:54 p.m.
New subject: Restoring an XT - transfer problem
At 01:17 AM 2/24/2007 -0600, you wrote:
Fred Cisin wrote:
This may not help on a machine of that vintage, but I have a
software/hardware bundle here I'm looking to sell. It's Laplink Remote
Access, Laplink V, TS Fax, TS Online, and Laplink Alert. It's got a still
sealed plastic bag with 3 disks (3?" with two holes, so therefore 1.2mb?)
and a cable in a box. The cable is some sort of hydra, with two DB-9S and
one DB-25S, the later stamped SERIAL and TRAVELING SOFTWARE. The manual
looks like a few hundred pages and is copyright 1993.
-T
[Haiku error messages] A file that big? / It might be very useful. /
But now it is gone.
--... ...-- -.. . -. ----. --.- --.- -...
tpeters at nospam.mixcom.com (remove "nospam") N9QQB (amateur radio)
"HEY YOU" (loud shouting) WEB ADDRESS http//www.mixweb.com/tpeters
43? 7' 17.2" N by 88? 6' 28.9" W, Elevation 815', Grid Square
EN53wc
WAN/LAN/Telcom Analyst, Tech Writer, MCP, CCNA, Registered Linux User 385531
On Fri, 23 Feb 2007, Frank McConnell wrote:
I have never heard of that at all -- What was the exact name, and why was
it necessary? I have PC DOS 3.3 here but I don't see anything like what
you're describing... I am thinking interlnk/intersvr didn't turn up
'til MS-DOS 6.0. I
used to use them to back up my HP100LX (with the 100LX running
INTERSVR.EXE under its in-ROM MS-DOS 5.0), and I'm thinking they
weren't available 'til I upgraded the desktop PC from MS-DOS 5.0 to
MS-DOS 6.
Was the RCV35 (or whatever it was called) from PC-DOS 3.30 present in
MS-DOS? (used for transferring files from 5.25" PCs to 3.5" PS/2s)
5:56 p.m.
New subject: Restoring an XT - transfer problem
Most 3.5ers have header type connectors, not card
edge. I think he's going to have to snip the wire on
that particular cable. Unless of course he's using one
of those little adapter thingees with an available
card edge connector on the end of his cable. That
would be preferred.
I doubt you can still get them, but I've seen those adapters (heck, I've
got a couple in use on my 5160 machine) that were in the form of a small
PCB with card edge fingers (to plug the cable connector onto) and a 2-row
34 pin harder socket soldered to the PCB that fitted onto the back of the
3.5" drive. And there was a jumper on the PCB labelled 'XT' and 'AT'
that
disconnected pin 34 inthe 'XT' position.
-tony
7:17 p.m.
New subject: Restoring an XT - transfer problem
I assumed that folk here would understand "mask
off"
and come up with
suitable methods.
Yes. Just that I envisioned a typical 3.5" drive and
it seemed a tad inconsistent to use the term w/it's
type of interface. I guess I was having a brain burp.
When I typed the response to Chuck's reply, I
remembered that an adapter would facilitate "masking
off" a particular pin.
But I just had din-din so I pormise to be much more
alert :)
____________________________________________________________________________________
TV dinner still cooling?
Check out "Tonight's Picks" on Yahoo! TV.
http://tv.yahoo.com/
7:24 p.m.
New subject: Restoring an XT - transfer problem
depends on how literally we should take that - I have
forgotten a lot.
Some others on this list, such as Chuck and Allison have not been so prone
to "old-timer's" syndrome.
I did NOT mean to sleight any of the other extraordinarily knowledgeable
people on this list, such as Dave Dunfield, Tony Duell, etc. This list
has a disproportionately large number of experts. My apologies to all of
those whom I didn't acknowledge.
7:31 p.m.
New subject: Restoring an XT - transfer problem
> I assumed that folk here would understand
"mask off"
> and come up with
> suitable methods.
On Mon, 26 Feb 2007, Chris M wrote:
Yes. Just that I envisioned a typical 3.5" drive
and
it seemed a tad inconsistent to use the term w/it's
type of interface. I guess I was having a brain burp.
When I typed the response to Chuck's reply, I
remembered that an adapter would facilitate "masking
off" a particular pin.
I figured that it would be less irreversible than saying to break off that
pin!
But I just had din-din so I pormise to be much more
alert :)
plenty of lerts here
7:32 p.m.
New subject: Restoring an XT - transfer problem
--- Fred Cisin <cisin at xenosoft.com> wrote:
I did NOT mean to sleight any of the other
extraordinarily knowledgeable
people on this list, such as Dave Dunfield, Tony
Duell, etc. This list
has a disproportionately large number of experts.
My apologies to all of
those whom I didn't acknowledge.
Apology accepted LOL LOL
____________________________________________________________________________________
Get your own web address.
Have a HUGE year through Yahoo! Small Business.
http://smallbusiness.yahoo.com/domains/?p=BESTDEAL
7:44 p.m.
New subject: Restoring an XT - transfer problem
On 26 Feb 2007 at 16:24, Fred Cisin wrote:
> Some others on this list, such as Chuck and
Allison have not been so prone
> to "old-timer's" syndrome.
Speak for yourself, Fred. With the wildly fluctuating barometer
that we've had around these parts lately, I'd kill for a good night's
sleep. "Mens sana in corpore sano", feh.
Cheers,
Chuck
7:46 p.m.
New subject: Restoring an XT - transfer problem
Fred Cisin wrote:
I'm not sure which group I fall into, you insensitive clod!
;)
--
Jim Leonard (trixter at oldskool.org) http://www.oldskool.org/
Help our electronic games project: http://www.mobygames.com/
Or check out some trippy MindCandy at http://www.mindcandydvd.com/
A child borne of the home computer wars: http://trixter.wordpress.com/
depends on how
literally we should take that - I have forgotten a lot.
Some others on this list, such as Chuck and Allison have not been so prone
to "old-timer's" syndrome.
I did NOT mean to sleight any of the other extraordinarily knowledgeable
people on this list, such as Dave Dunfield, Tony Duell, etc. This list
has a disproportionately large number of experts. My apologies to all of
those whom I didn't acknowledge.
7:54 p.m.
New subject: Restoring an XT - transfer problem
--- Fred Cisin <cisin at xenosoft.com> wrote:
I figured that it would be less irreversible than
saying to break off that
pin!
In the event where those adapter thingees weren't
available, and the use of a more modern floppy cable
was required (to accomodate a 3.5" drive w/a header
connector), it would make the most sense IMHO to snip
the pin 34 wire. It could always be soldered back together.
____________________________________________________________________________________
Do you Yahoo!?
Everyone is raving about the all-new Yahoo! Mail beta.
http://new.mail.yahoo.com
7:59 p.m.
New subject: Restoring an XT - transfer problem
On Mon, 26 Feb 2007, Jim Leonard wrote:
I'm not sure which group I fall into, you
insensitive clod!
;)
Anything that i say now will just dig me in deeper.
--
Grumpy Ol' Fred cisin at xenosoft.com
8:15 p.m.
New subject: Restoring an XT - transfer problem
On Mon, 26 Feb 2007, Chris M wrote:
In the event where those adapter thingees
weren't
available, and the use of a more modern floppy cable
was required (to accomodate a 3.5" drive w/a header
connector), it would make the most sense IMHO to snip
the pin 34 wire. It could always be soldered back together.
In my junk pile(s), I have those adapter thingees (technical term),
34, 40, 50 pin cables with some wires cut and switches soldered in,
cables with breadboards, cables with 34 SPST switches, drives with cable
connector mods, FDC cards with connector mods, etc.
I've got half a dozen totes just for 34 pin cables.
Anybody with a junk pile should be able to locate something that can be
kludged to do the job. If you have NO junk pile, then you're on your
own. (YOYO)
27 Feb
27 Feb
6:13 p.m.
New subject: Restoring an XT - transfer problem
I assumed that folk here would understand
"mask off"
and come up with
suitable methods.
Yes. Just that I envisioned a typical 3.5" drive and
it seemed a tad inconsistent to use the term w/it's
type of interface. I guess I was having a brain burp.
When I typed the response to Chuck's reply, I
remembered that an adapter would facilitate "masking
off" a particular pin.
6:14 p.m.
New subject: Restoring an XT - transfer problem
I did NOT mean to sleight any of the other
extraordinarily knowledgeable
people on this list, such as Dave Dunfield, Tony Duell, etc. This list
has a disproportionately large number of experts. My apologies to all of
those whom I didn't acknowledge.
I am not sure what my name is doing on that list...
-tony
8:15 p.m.
New subject: Restoring an XT - transfer problem
On 27 Feb 2007 at 23:13, Tony Duell wrote:
Another idea would be to crimp another IDC connector
onto the cable
alongside the connector that's already there (the same side of any 'IBM
twist, for example). You could pull the pin 34 contact out of the
connector before fitting it to the cable. And of course you could use a
header socket, not an edge conenctor, to plug directly into the 3.5" drivc.
I didn't suggest that because a fair number of people like to leave
the equipment in "original" state and one never knows when one is
about to suggest improving the Mona Lisa by adding some facial hair
to the picture.
:)
Chuck
8:48 p.m.
New subject: Restoring an XT - transfer problem
I did NOT mean
to sleight any of the other extraordinarily knowledgeable
people on this list, such as Dave Dunfield, Tony Duell, etc. This list
has a disproportionately large number of experts. My apologies to all of
those whom I didn't acknowledge.
I am not sure what my name is doing on that list...
-tony
8:55 p.m.
New subject: Restoring an XT - transfer problem
Another idea would be to crimp another IDC
connector onto the cable
alongside the connector that's already there (the same side of any 'IBM
twist, for example). You could pull the pin 34 contact out of the
connector before fitting it to the cable. And of course you could use a
header socket, not an edge conenctor, to plug directly into the 3.5" drivc.
I didn't suggest that because a fair number of people like to leave
the equipment in "original" state and one never knows when one is
about to suggest improving the Mona Lisa by adding some facial hair
to the picture. 
10:22 p.m.
New subject: Restoring an XT - transfer problem
Tony Duell wrote:
Don't be modest. You're a veritable fountain of information.
Peace... Sridhar
I did NOT mean
to sleight any of the other extraordinarily knowledgeable
people on this list, such as Dave Dunfield, Tony Duell, etc. This list
has a disproportionately large number of experts. My apologies to all of
those whom I didn't acknowledge.
I am not sure what my name is doing on that list...
28 Feb
28 Feb
6:28 p.m.
New subject: Restoring an XT - transfer problem
I did NOT mean to sleight any of the other
extraordinarily knowledgeable
people on this list, such as Dave Dunfield, Tony Duell, etc. This list
has a disproportionately large number of experts. My apologies to all of
those whom I didn't acknowledge.
I am not sure what my name is doing on that list...
10:51 p.m.
New subject: Restoring an XT - transfer problem
> > I did NOT mean to sleight any of the other
extraordinarily knowledgeable
> > people on this list, such as Dave Dunfield, Tony Duell, etc. This list
> > has a disproportionately large number of experts. My apologies to all of
> > those whom I didn't acknowledge.
>
On Tue, 27 Feb 2007, Tony Duell wrote:
> I am not sure what my name is doing on that
list...
On Tue, 27 Feb 2007, Dave Dunfield wrote:
Mine either...
I accused both of you of being extraordinarily knowledgeable.
If that is offensive to either of you, then I apologize.
--
Grumpy Ol' Fred cisin at xenosoft.com
3 Mar
3 Mar
10:27 a.m.
New subject: Restoring an XT - transfer problem
--- Tony Duell <ard at p850ug1.demon.co.uk> wrote:
In which case, buy a suitable conenctor to fit the
controller (either a
header socket or an edge connector), connectors for
the 2 drives (all
IDC types) and a length of 34 way iDC ribbon cable.
Make up a new drive
cable, with the 'IBM twist' and pin 34 pulled on
the 3.5" connector .
When you've finished using the 3.5" drice, put the
original cable back in
the machine.
-tony
I don't know if it's been suggested, but hows about
utilizing a newer floppy cable, and simply clipping
the pin 34 wire. Not only will you not need an
adapter, you won't ruin the original equipment. Voyluh
I have on the way a number of those floppy adapters
(which allow the use of a 3.5" drive w/an old style 5
1/4" only cable (card-edge). If anyone needs 1 contact
me offlist. $.50 + shipping + packing. I suppose I
could improvise packing (thereby reducing costs). It
would save the expense of paying 6-8 bucks for
shipping if all you need is 1 or a couple of those.
Bgmicro.com was the source. Contact me offlist.
____________________________________________________________________________________
Get your own web address.
Have a HUGE year through Yahoo! Small Business.
http://smallbusiness.yahoo.com/domains/?p=BESTDEAL
10:57 a.m.
New subject: Restoring an XT - transfer problem
On 3 Mar 2007 at 7:27, Chris M wrote:
I don't know if it's been suggested, but hows
about
utilizing a newer floppy cable, and simply clipping
the pin 34 wire. Not only will you not need an
adapter, you won't ruin the original equipment. Voyluh
My quibble with both Tony's (and your) suggestion is that the
responders with the pin 34 suggestion (Fred and me, for two) weren't
*sure* about the fix--we just had a suspicion--as in "try this".
Building a cable that's potentially a throwaway might be more cost
than the OP wanted to bear. Yes, in theory, you could pry the
connectors off and reuse them, but I think that's not a very reliable
practice.
OTOH, using a 3.5-5.25 adapter and simply maskng the contact with a
bit of tape is completely reversible.
Cheers,
Chuck
11:05 a.m.
New subject: Restoring an XT - transfer problem
OTOH, using a 3.5-5.25 adapter and simply maskng the
contact with a
bit of tape is completely reversible.
Yes yes but of course. But that presumes the
availability of 1. I had never seen one of these
things until about a year or so ago. That's why I
ordered 50 when I found a source! But if there is a
header connector coming off the mobo, then using a
modern cable is the next less strenuous method, for if
you have to eliminate pin 34, reducing a common cable
to scrap (though not really) is the least painful
solution I think.
____________________________________________________________________________________
No need to miss a message. Get email on-the-go
with Yahoo! Mail for Mobile. Get started.
http://mobile.yahoo.com/mail
11:43 a.m.
New subject: Restoring an XT - transfer problem
On 3 Mar 2007 at 8:05, Chris M wrote:
Yes yes but of course. But that presumes the
availability of 1. I had never seen one of these
things until about a year or so ago.
As far as I know, one was usually part of the 3.5" to 5.25" floppy
adapter frame. My first 1.44MB drive, a Sony, came with one as part
of the kit. They're simply not that uncommon. That you hadn't seen
one is more of a statement of your sheltered life than of their
ubiquitousness.
Cheers,
Chuck
11:55 a.m.
New subject: Restoring an XT - transfer problem
--- Chuck Guzis <cclist at sydex.com> wrote:
On 3 Mar 2007 at 8:05, Chris M wrote:
LOL LOL LOL LOL. Yeah that's me, the cloistered monk,
but for having utterly shirked the vow of silence. But
keep in mind I haven't seen as many floppies as you
have. And I do believe Sony invented the thing, so the
earlier models would logically include it. But in
defense of my worldliness, which basically makes me a
wandering mendicant monk, I have seen at least 1 3.5"
drive with a card edge corrector. So nyeh.
Does anyone know if the 3.5's in the Sony SMC-70
series have card-edge or headers? I have a 70 and a
70G but haven't played with them much. And these are
auto-inject style, no? If so, mine are busted in that regard:(
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Yes yes but of course. But that presumes the
availability of 1. I had never seen one of these
things until about a year or so ago.
As far as I know, one was usually part of the 3.5"
to 5.25" floppy
adapter frame. My first 1.44MB drive, a Sony, came
with one as part
of the kit. They're simply not that uncommon. That
you hadn't seen
one is more of a statement of your sheltered life
than of their
ubiquitousness.
5:59 p.m.
New subject: Restoring an XT - transfer problem
On 3 Mar 2007 at 8:05, Chris M wrote:
That's where all mine came from. I never actually used them, since I made
up my own cables with the right connectors, positioned as I wanted them.
Some of my adapter kits came with little PCBs with the jumper link I
mentioned earlier. This type has all the ground connections commoned on
the PCB. The other type is a plastic molding containing 34 contacts that
fits over the plug on the back of the 3.5" drive and has a tongue that
fits into the edge connector socket. This type, of course, has all 34
connections electrically isolated from each other. I've used those to
make plugs to fit edge connectors in other devices -- I remember kludginh
a wire-wrap DIL socket into one using a bit of stripboard to extend some
of the pins. And I used that to make EPROM cartridges for the Vectrex
without having to etch a PCB.
-tony
Yes yes but of course. But that presumes the
availability of 1. I had never seen one of these
things until about a year or so ago.
As far as I know, one was usually part of the 3.5" to 5.25" floppy
adapter frame. My first 1.44MB drive, a Sony, came with one as part
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