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Author Topic: New 15Khz RGB to VGA Converter Scaler  (Read 2424 times)

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Offline alexh

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Re: New 15Khz RGB to VGA Converter Scaler
« on: October 15, 2008, 11:03:08 PM »
This is a well known ancient scan doubler.

Cypress CM-397

It suffers from only being a 16-bit scandoubler (i.e. not good for AGA) and being external can suffer from Digital->Analog->Digital->Analog conversion problems (ringing, halos etc).

It can only output 60Hz so PAL scrolling jerks around a lot.

I do not recommend them, way too expensive for what they are. A guy called Roy Justace was selling functionally identical products for $49 (although I think he's put the price upto $69)
 

Offline alexh

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Re: New 15Khz RGB to VGA Converter Scaler
« Reply #1 on: October 15, 2008, 11:09:58 PM »
An external scandoubler is always going to suck compared to an internal one.

The best value for money is a £99 LCDTV from the supermarket instead. Just make sure it has an RGB SCART input. (If it has a PC VGA input too all the better.)

http://www.amiga.org/gallery/index.php?n=1332=13

If your regular PC monitor has S-Video input then the A600 and A1200 are already capable and can be persuaded to output S-Video with a simple wiring mod and a signal amplifier (very cheap mod).

Personally I just use a good quality 28" 4:3 CRT monitor and RGB SCART that I got for £40 from the second hand ads a long time ago. Works great with Amiga, all the consoles and a Super-Gun
 

Offline alexh

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Re: New 15Khz RGB to VGA Converter Scaler
« Reply #2 on: October 15, 2008, 11:20:09 PM »
LCD & Plasma is always going to make Amiga look worse than CRT. Just the nature of their internal workings. (Shame cos it doesn't need to be that way! Especially when paying the price of a 42" Plasma!)

Lots of places are (were) chucking out very big CRT monitors a while back. Video walls were being replaced with Plasma's etc. always good to keep your eye open for a 28" NEC (true) multi-sync monitor. Especially if you're not afraid to give it a caps-kit upgrade.