Classicamiga Forum Retro Edition
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Thread: ebay Amiga 23 to 15-pin Video Adapter
Tiago 12:29 16th October 2007
Will it worlk with a A1200 with no 15 khz monitor ?
seller says it will.... can i play games in my A1200 in a standart monitor with this adaptador?


Amiga 23 to 15-pin Video Adapter (new)

This adaptor allows the connection of a 15 pin standard PC monitor (SVGA or Multisync monitors, and also TFT monitors) directly to the Amiga's RGB port.

Note: The adaptor does not perform scandoubling therefore you must select VGA compatible screenmodes or use a monitor which also can handle 15 khz horizontal frequency. If you don't have a such 15 khz monitor, you can use the adaptor only for the Amiga 1200 / 4000 !


http://cgi.ebay.co.uk/Amiga-Video-Ad...QQcmdZViewItem
[Reply]
Stephen Coates 13:31 16th October 2007
You will be able to use Workbench with it, provided that you select something like Double PAL higres no filcker, or multiscan productivity. These use 30kHz which most VGA monitors will accept.

The regular PAL modes that games (and other programmes) use, are 15kHz and will only work on a 15kHz monitor, like a 1438 or a 1084 or a television. These will require an additional scandoubler to be used with a normal 30kHz VGA monitor.
[Reply]
Tiago 13:43 16th October 2007
hummm, ok, if so, i dont have interest on it.
If it could play 90% of the games it would be good.
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Harrison 14:11 16th October 2007
That looks identical to the one that comes included with an A4000. It is just a port adaptor to convert the 23 pin Amiga monitor connector to a standard 15 pin VGA one as used by PC monitors.

Most multisync monitors such as the Microvitic 1438 required such an adaptor as they had a captive VGA connector on their cable.

For what you need, you will still need a monitor that is capable of displaying 15Hz modes.

Only a scan doubler/flicker fixer can actually increase the frequency to allow a VGA PC monitor to display the TV resolution 15Hz modes most Amiga games use. And external Amiga scan doublers are very rare and very expensive. The cheapest I've seen one for sale was £80 new from amigakit.com last year.
[Reply]
Puni/Void 14:42 16th October 2007
Originally Posted by :
And external Amiga scan doublers are very rare and very expensive. The cheapest I've seen one for sale was £80 new from amigakit.com last year.
That's true, they are both hard to come by and expensive. Guess they are worth it though, if you are going to use the machine a lot.
[Reply]
Tiago 15:08 16th October 2007
Forget it....
i will stay playing on tv...
to expensive that one
[Reply]
Harrison 15:25 16th October 2007
That alternative is to get hold of an Amiga multisync monitor such as the Microvitec 1438 which will display both 15Hz game and 31Hz higher resolution modes so you can play games and using Workbench at a much higher resolution on the same monitor.

You should be able to find an Amiga Multisync monitor quite cheaply on ebay. An Amiga badged version of the same monitor also exists. Plus there are some other Commodore made multisync monitors such as the Commodore 1960.
[Reply]
Tiago 15:34 16th October 2007
Yes i can find them.... but send them to Portugal ..... that is a big problem....
[Reply]
Stephen Coates 17:59 16th October 2007
I highly recomend the Philips CM8833 MkII (or equivalent), or a Trinitron TV for games.

The 1438 is still good for the 31kHz modes though.

I am yet to make an adaptor to connect the Amiga to my PC monitor. I tried to make one but I didn't do a very good job of making the PCB, so I might just buy one.

Or, I might get a scandoubler if I can afford one.
[Reply]
J T 16:39 17th October 2007
Originally Posted by Stephen Coates:

The 1438 is still good for the 31kHz modes though.
Eh? I noticed your bolding there.... 31kHz? 31,000 cycles per second

What's that all about then? As far as I know, CRTs cannot refresh at such crazy high rates. Unless we've gotten mixed up somehow, I think you might be a little mistaken with your units there buddy.
[Reply]
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