From: Scott McDonnell (simstoolbox_at_attbi.com)
Date: 2002-10-02 07:22:34
----- Original Message ----- From: "Marko Mäkelä" <firstname.lastname@example.org> To: <email@example.com> Sent: Tuesday, October 01, 2002 2:42 PM Subject: Re: Vic 20 RF Modulator > On Tue, Oct 01, 2002 at 07:58:23PM +0200, Christer Palm wrote: > > With a bit of soldering you can, of course, also use any suitable RF > > modulator as a replacement. > > But where can you find such modulators? Not all modulators operate on > a composite video signal. I have the opposite problem, trying to get > composite video output (or S-video for that matter) from an Atari VCS 2600. Basically both problems go hand in hand. Nearly EVERY modulator either accepts luma/chroma or composite video for the input. This is because a modulator does exactly what it is named; it modulates a compositie signal by simply adding composite video signal and line-level audio signal directly into a Chan 3 or 4 carrier frequency. If a modulator accepts a luma/chroma signal, it is going to convert that into composite video before adding it to the channel carrier. Going from Luma/Chroma to composite is fairly simple. It is just a capacitor buffer on the chroma line terminating into the Y and C lines tying together. http://www.hut.fi/Misc/Electronics/circuits/svideo2cvideo.html or for a deeper understanding and even more circuits: http://www.epanorama.net/links/video.html (might want to bookmark http://www.epanorama.net) A google search for "Atari 2600 composite" resulted in this site. http://www.classicgaming.com/vcsp/HowToMAIN.htm If you are not comfortable with modifying your Atari, you could use a VCR to do this for you. However, to the original poster of this question: I would say to get your hands on some kind of monitor with composite inputs, purchase a fully-packaged modulator directly (read: no soldering required) from an electronics retailer. Here in the states they go for around $20 USD at Radio Shack. I'm sure you have some similar shop in your local area. Of course, this does not solve your problem of not being confident with a soldering iron, because you will still need to make a DIN to RCA cable. You might look into it though, because it is extremely trivial to do (and if you get crimp-type connectors, you do not even need to solder.) > > Another idea: if you want a Commodore to Scart cable but don't want to > solder, get one of those cheap RCA (or RCA/Mini-DIN) to Scart adapters and > a DIN to 4 RCA plugs cable. (Or a DIN to 2 RCA plugs cable, in which case > you probably will have to reroute one of the wires going to the DIN plug.) > > Marko > > Message was sent through the cbm-hackers mailing list Message was sent through the cbm-hackers mailing list
Archive generated by hypermail 2.1.4.