adam@mit-amt.MEDIA.MIT.EDU (Adam Glass) (08/14/89)
I recently saw an article in MacWeek with a story which interested me. Well,
actually it's somewhat more than interest. I need to be able to do this!
Anyway, I read through the article, and I'll transcribe the side bar which
supposedly tells how to do it. I'm by no means an EE, but I know enough
about electronics to firmly believe that what follows makes no sense at
all.
==========
>From MacWeek, August 8th, 1989, page 20: (For those of you who don't get
MacWeek, but were at the Expo, this was the copy which was given out free.)
Reproduced without permission. Sidebar entitled, "You'll need a custom cable"
Text follows:
To get National Television System Committee-standard [editor's note: is
*that* what NTSC stands for? I always thought it was for Never Twice the Same
Color!] video from Apple's eight-bit color card for the Mac II, users need a
special cable to connect the board to video output devices like VCRs and
television monitors.
The cable requires a 15 pin male DB-15 pin connector, a male RCA plug and a
coaxial cable - standard parts available in electronics supply stores for about
$30. Many computer dealers, electronics stores and cable companies also make
custom cables. The DB-15 end of the cable plugs into the female DB-15 connector
on the Macintosh video card, and the other end plugs into a video output
device, such as a VCR.
==========
OK... I'm a little fuzzy on that last paragraph. I don't think I'll have any
trouble soldering a co-ax to an RCA plug. But how does one connect a co-ax
cable to a connector with 15 pins? Which two pins should I solder the wires
to?
Finally, there's a piece of software associated with this little hack. To
quote MacWeek again, [it is] "a free software utility developed at Apple...
[which was] first distributed at the Apple Developers's Conference in May and
soon to be available on bulletin boards like CompuServe and Usenet..." Maybe
someone with Phil & Dave's would like to make it available for ftp-ing (or
was it not on the CD?).
Anyway, I need to make some videos with my mac and I don't want to have to buy
an expensive genlock board. This seems like a quick (& VERY dirty) hack which
would save me $1000 and do a sufficiently good job to suit my needs.
Thanks...
Adam
--
"Offer me anything I ask for..." | email: adam@media-lab.media.mit.edu |
"Anything you want." +---------------------------+---------+
"I want my father back, you son of a bitch." - The Princess Bride | Sigh... |sarrel@sioux.cis.ohio-state.edu (Marc Sarrel) (08/14/89)
You're joking? Right? Someone at MacWeek is pulling our collective leg! Cottleston, Cottleston, Cottleston Pie, A fly can't bird, but a bird can fly. Ask me a riddle and I reply: "Cottleston, Cottleston, Cottleston Pie." Cottleston, Cottleston, Cottleston Pie, A fish can't whistle, and neither can I. Ask me a riddle and I reply: "Cottleston, Cottleston, Cottleston Pie." Cottleston, Cottleston, Cottleston Pie, Why does a chicken, I don't know why. Ask me a riddle and I reply: "Cottleston, Cottleston, Cottleston Pie." -=- "Master, why is the letter 'i' the symbol for current?" "Because there is no letter 'i' in the word 'current'." "Master, why do we use the letter 'j' for sqrt(-1)?" "Because we use the letter 'i' for current." Whereupon the Master struck the Disciple, and the Disciple became enlightened.
fontenot@rice.edu (Dwayne J. Fontenot) (08/15/89)
In article <475@mit-amt.MEDIA.MIT.EDU> adam@mit-amt.MEDIA.MIT.EDU (Adam Glass) writes: > >I recently saw an article in MacWeek with a story which interested me. Well, >actually it's somewhat more than interest. I need to be able to do this! > [stuff about the following making no sense at all deleted...] > >========== >>From MacWeek, August 8th, 1989, page 20: (For those of you who don't get >MacWeek, but were at the Expo, this was the copy which was given out free.) >Reproduced without permission. Sidebar entitled, "You'll need a custom cable" >Text follows: > [stuff about assembling a special cable deleted...] > >Finally, there's a piece of software associated with this little hack. To >quote MacWeek again, [it is] "a free software utility developed at Apple... >[which was] first distributed at the Apple Developers's Conference in May and >soon to be available on bulletin boards like CompuServe and Usenet..." Maybe >someone with Phil & Dave's would like to make it available for ftp-ing (or >was it not on the CD?). > >Anyway, I need to make some videos with my mac and I don't want to have to buy >an expensive genlock board. This seems like a quick (& VERY dirty) hack which >would save me $1000 and do a sufficiently good job to suit my needs. The utility in question is distributed by Apple on the demo disk of the 32-Bit QuickDraw package. The utility is called the Macintosh II Video Card Utility (long name) and is described as a "Moitors CDEV extension". The readme file that comes with the utility emphasizes that this software is provided as a service and is _not_ supported by Apple. Hardware required: o Mac II with a 4 or 8 bit color board. o special cable (get your parents to put it together) Software required: o System 6.0.3 or later o Monitors 4.0 (included with 32-Bit QD) o General CDEV (included with 32-Bit QD) o 32-Bit QD The readme file seems pretty complete (its long so I won't post it here) and tells exactly how to construct the special cable needed. Unfortunately, since this is part of an Apple software distribution, I don't know if I can distribute it over the net. BTW, I don't remember seeing this software on Phil and Dave's... >Thanks... You're welcome... >Adam ------ Dwayne Jacques Fontenot : fontenot@uncle-bens.rice.edu Computing Information Services Microconsultant ; Rice University, Houston TX Comp Sci / Cog Ling Ugrad * This bit reserved for future expansion...