With his permission, I am posting this company's info.
They are an electronics recycler, and he has a working computer museum.
Greg H. DeVoll
First Choice Computer Recycling
525 Park Ridge Court
Eau Claire, WI 54703
Phone: 715-833-2005
Fax: 715-833-1944
Email: greg at firstchoicerecycling.com
He has doubles, triples, and gaylords of most things. Includes old DEC,
Apple, old gaming machines including Pong and Commodore, telephones very old
rotary, many styles, many new in the box, old test equip, etc.
Emails and calls are welcome, and tours are available.
He is willing to sell old stuff, and he can test almost anything.
He has 40K sq feet.
He does not have a website for the museum.
Cindy Croxton
Electronics Plus
1613 Water Street
Kerrville, TX 78028
(830)792-3400 phone (830)792-3404 fax
AOL IM elcpls
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>
> > Super-8 8mm film could have a magnetic soundtrack (I have never heard of
> > opticla sound on such films). I have also never heard of any soundtrack
> > on standard 8 ('double run 8(') or single-8 film.
>
>http://en.wikipedia.org/wiki/Super_8_film#Sound has the following:
>"Super 8mm was also specified with an optical sound track. This occupied
>the same location as the magnetic track. Picture to sound separation in
>this format was just 16 frames. Projectors and cameras obviously could
>not record sound in this system, but optical sound package movies became
>briefly popular, particularly in Europe (mainly because they were cheaper
>to produce - though the projectors cost more). Although the optical sound
>should have been inferior in quality to magnetic sound (running at 3.6
>inches per second for 24 frames per second), in practice it was often much
>better, largely because packaged movie magnetic sound was often poorly
>recorded."
>
>No mention of audio tracks in any form in the Regular-8 article however.
>
>Arno
While there was never a standard for sound on regular 8mm
film,there were various
attempts at it. I was recently given a Eumig P8M Imperial projector
which has a sound deck on the back
on which a tape from a 3 3/4 ips reel to reel recorder can be
threaded to maintain "sync" with the film
and start and stop the projector. The problem is that every time a
quarter inch tape is run it stretches a bit
and the sync doesn't last.
Cheers
Charlie Fox
Charles E. Fox
793 Argyle Rd. Windsor Ont.
519-254-4991 N8Y3j8
www.chasfoxvideo.com
> Stupid question but do those films (8" or 12") have sound on them like a
> track or are they purely video slides in a row? (I've really never seen
> them up close so hollywood is my only incorrect knowledge of how it
> looks).
>
>
I have one 8mm movie (the original starwars movie) with a single audio
track next to the perforations. Running time 15 to 20 minutes if I
remember correctly. Never had the opprtunity to hear the sound, as we
did not have a sound capable projector.
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>Date: Sun, 7 Apr 2013 10:16:33 -0700 (PDT)
>From: Fred Cisin <cisin at xenosoft.com>
>Ken Olsen (DEC) once said that there was only need for half a dozen. So
>long as there is still need for half a dozen, then it ain't dead!
--- It sounds like you are referring to the quote which is attributed to Howard Aiken (NOT Ken Olsen): "Only six electronic digital computers would be required to satisfy the computing needs of the entire United States."
(Aiken was also known for such prescient positions as being religiously opposed to storing instructions and data in the same memory space.)
Steve L.
Hey all,
I recently acquired a KA655-AA (MicroVAX 3800/3900 CPU) and some
appropriate RAM, and I'm having trouble grokking the console SLU
output. If I'm reading the docs correctly (and I have to go all
the way back to the KA630 docs to find the proper switch polarity),
if I'm running it without a bulkhead attached at all, the serial
speed should be 300 baud. When my terminal is running at 300,
8 bit, no parity, 1 stop bit, I get some garbage on screen but
not much more.
Am I missing something? Do I need to do some magic with the front
panel ports to make it cooperate? I'm using a DB25 serial cable
that I've been using on my KDF11-B CPU board with no trouble; if
I look at the docs, it looks like it should be fine assuming I can
let DTR float (it's unused in my cable, since it's an external
clock pin on the KDF11-B). I can also see the LEDs on the spine
of the CPU counting down, though I didn't watch for long enough to
see if they ever got to zero.
As far as I know, the memory is connected OK and works, though I
assume I don't really need that if I just want to see a console
prompt. I'm using a very short (~3") 50-pin SCSI ribbon cable,
which I assume is OK. And it's an MS650-BA, which the KA655
manual specifically calls out, because the -AA is too slow.
- Dave
Stupid question but do those films (8" or 12") have sound on them like a track or are they purely video slides in a row? (I've really never seen them up close so hollywood is my only incorrect knowledge of how it looks).
I've got a little "satellite" PDP-11/23 with just a CPU, memory , some
serial ports and a BDV11 bootstrap card. One of the serial ports is
connected to a bigger PDP-11 running RSX-11M+ and DECnet-11M. My goal is to
use the DECnet MOP bootstrap built into the BDV11 to download a "bare metal"
application from the RSX system on the bigger -11.
So far, so good. After a little twiddling with the DECnet configuration
I've got it so that I can trigger the BDV11 boot and the host will download
the secondary and tertiary loaders to the satellite. Amazing :-) Now the
problem is for me to write some application for the tertiary loader to
download. Writing a PDP-11 assembly program is not an issue for me, and
I've got MACRO-11 and TKB on the host system, but I don't know exactly what
DECnet wants.
How is the application system image supposed to be made? What's the file
format that DECnet wants to download? It's probably made with TKB in some
way, but what are the proper TKB options? Where (in memory) does it get
loaded on the satellite? What address does it start execution at ? Is the
MMU turned on? Is the I/O page mapped? Are any useful values (e.g. a
pointer to a valid stack, the address of the download device CSR, etc)
passed in the registers? So many questions !
Can anybody point me to documentation on this, or an example of a little
program that gets downloaded via DECnet MOP?
In the olden days, people probably would have generated an RSX-11S system
and downloaded that, but I don't have an 11S kit so that's not an option.
Thanks,
Bob Armstrong
