>My little U-matic portable (The front says JVC, the service manual says
>Hitachi...) has SO239 socket ('UHF') for the composite video input and
>output. It's a 625 line PAL machine, of course -- I have no idea what the
>NTSC version uses....
My UMatic experience is really limited to just Panasonic and Sony units
(dating from mid-late 70's thru my newest Sony is maybe 10 years old now).
But interestingly... I was wrong... I HAVE seen the "UHF" connector for
composite. I had completely forgotten about the old closed circuit video
system I pulled out when I started working at my current job.
They had 3 black and white security cameras that used that connector. I
know they were composite video, because I remember using an RCA adaptor,
and connecting one to a VCR's video line in shortly after pulling them
out of service.
So yeah... I have actually seen that setup, I had just forgotten about
it, as it might have been the only place I have seen that (but also, 90%
of my AV experience is from mid 80's to mid-late 90's, so most of what I
was exposed to is the "current standards" connectors). That's why I
disclaimed that I wasn't saying it didn't exist... just that I hadn't
seen it (I have also learned in A/V, if there is a connector out there,
odds are, someone, at sometime, used it in their setup)
-chris
<http://www.mythtech.net>
On Jan 25, 10:10, Adrian Graham wrote:
> > -----Original Message-----
> > From: ard(a)p850ug1.demon.co.uk [mailto:ard@p850ug1.demon.co.uk]
> > Sent: 24 January 2002 23:33
> > To: classiccmp(a)classiccmp.org
> > Subject: Re: BBC Master keyboard
> >
> > Normally such keyswitches come apart. I am not sure just what type is
> > used on the Beeb, but if they have round terminal pins then
>
> When I was key swapping to get a complete Master keyboard using a scrap
> machine I noticed the keyswitches were glued together and not clipped. I
> wanted to just swap over the plungers but had to swap over the whole
switch
> instead.
They're different keyswitches.
--
Pete Peter Turnbull
Network Manager
University of York
> -----Original Message-----
> From: Sellam Ismail [mailto:foo@siconic.com]
> Well, I also collect various printers, monitors, and terminals. I'm
> weird. But boring as they are, it's all part of the record, and needs
> preserving.
Monitors and terminals are a necessity. Printers aren't. That doesn't mean that I won't have printers, but they need to be more impressive. I have a Genicom, for instance, which I've kept due to its unique ability to survive the direct impact of a locomotive.
Chris
Christopher Smith, Perl Developer
Amdocs - Champaign, IL
/usr/bin/perl -e '
print((~"\x95\xc4\xe3"^"Just Another Perl Hacker.")."\x08!\n");
'
> -----Original Message-----
> From: ard(a)p850ug1.demon.co.uk [mailto:ard@p850ug1.demon.co.uk]
> > I have a 50-75 ohm converter, I believe. I'll need to dig it up.
> No, you don't need it (or want it). The monitor's input
> impedance will be
> 75 ohms as well (it's a standard for composite video). So all
> you need is
> a piece of 75 ohm cable, a 75 ohm BNC plug for the computer end and
> whatever plug fits your monitor's input...
Oops. :) I see now. Thanks.
Chris
Christopher Smith, Perl Developer
Amdocs - Champaign, IL
/usr/bin/perl -e '
print((~"\x95\xc4\xe3"^"Just Another Perl Hacker.")."\x08!\n");
'
More office cleaning. Most of the software disks are in unopened packages.
Free for postage from Chicago:
1 copy Borland Brief ("The Programmer's Editor"), MS-DOS, Disks & Docs, 3
pounds
1 copy Borland Brief ("The Programmer's Editor"), OS/2, Disks & Docs, 3
pounds
(The original packages had both MS-DOS and OS/2 disks.
I found 1 set of disks and 2 sets of docs, so I'm making
one OS/2 package and one MS-DOS package).
2 copies Borland Quatro Pro 1.0 SE, MS-DOS, Disks & Docs, 3 pounds @
1 copy WordPerfect 5.2 for Windows, Docs & disks, 8 pounds
1 copy Code Warrior Starter Kit 7, Mac w/68020 & System 7.1, 2 CD's, 1 pound
AT&T 6300 Plus (80286 CPU) Docs & Disks (13 pounds in all):
MS-DOS User's Guide (sorry, no disks)
Getting Started (w/Tutorial, Mouse & Customer Diagnostic disks)
Hardware Reference Manual (w/lots of motherboard logic diagrams)
Service Manual (w/System Diagnostics disk)
Please reply off-list to robert_feldman(a)jdedwards.com.
FIFO.
Does anyone have any idea what this card is for?
<http://www.classiccmp.org/hp/mds-80/analog-d.jpg> When I picked it up I
thought it was a Multibus card but a closer look reveals that it's (1) too
tall, (2) too narrow, (3) The large connector at the bottom has 100
contacts instead of 86, (4) the narrow connector has 40 pins instead of 60
and it sticks down too far.
Any ideas?
Joe
The rectangular boxes are relays, look like mercury wetted contact relays.
The Bus is some sort of lab instrumentation and control. I am not sure what
it is called. It is familiar with me too. I have seen quite a few similar
cards in the past.
Paxton
Astoria, OR
PS Nice to see you back. Nice MDS you got. What cards?
> I guess I only thought I'd get out of this hobby. Last week I got this
> <http://www.classiccmp.org/hp/mds-80/picture.jpg> in the mail. This is from
> a deal that I've had working for over a year. I've got it running and it
> works nice!
My condolences, and here I thought you were going to be an insperation to us
all and prove that it is possible to recover from the classic computer
addiction! :^( I guess it just goes to prove everyone here is doomed !
Welcome back :^)
Zane
Got this via email. Contact him at Excel1Star(a)cs.com if you can take
them off his hands:
>Hi, I have 2 BMC computers from the early 80's. They operate on CPM.
>They
>were neat in their day (still are). Two different models -- if-800
>based on 5
>inch floppy (has light pen, function keys, integrated printer) and the
>other
>one based on 8 inch floppy. I have FORTRAN compiler, SUPERCALC and
some >other
>software. I have boxes of CPM books. And some media too.
>Would like to find a good home for them. I would like to make a tax
>deductible contribution. Thanks Al
Mike
Tarnover - The Apple II Repository
http://tarnover.org
I have the "IBM 3101 Display Terminal Description" document. It's about 1/2"
thick and has the technical specs, functional description, setup and
configuration, interface wiring diagrams (not schematics), character maps,
etc...
Normally, I'd offer it for free but since I'm recently umemployed, the new
owner will have to buy me breakfast. $5.00 and it's yours!
If anyone wants it, contact me off list.
SteveRob
>From: Doc <doc(a)mdrconsult.com>
>Reply-To: classiccmp(a)classiccmp.org
>To: classiccmp(a)classiccmp.org
>Subject: Re: IBM 3101 Dip Switches Configuration
>Date: Thu, 24 Jan 2002 22:30:36 -0600 (CST)
>
>On Thu, 24 Jan 2002, Dave McGuire wrote:
>
> > On January 24, Doc wrote:
> > > If by "normal serial cable" you mean a standard port-to-modem cable,
> > > that is most likely your problem. You need to use a null-modem serial
> > > cable with a terminal.
> >
> > That depends *completely* on the terminal. Several even have both
> > DTE- and DCE-wired connectors.
>
> Oops. My mistake. I should have said "You need to use a null-modem
>serial cable with an unmodified IBM 3101 terminal"
>
> Doc
>
>
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