Xref: utzoo comp.sys.mac:36385 comp.graphics:6859
Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!rutgers!mit-eddie!mit-amt!adam
From: adam@mit-amt.MEDIA.MIT.EDU (Adam Glass)
Newsgroups: comp.sys.mac,comp.graphics
Subject: Help Me! Mac II -> NTSC (repost)
Keywords: video,rgb,II
Message-ID: <475@mit-amt.MEDIA.MIT.EDU>
Date: 14 Aug 89 13:25:12 GMT
Organization: MIT Media Lab, Cambridge, MA
Lines: 52


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... |