Made by [[Campursoft|Campursoft]]
Designed by Steve Hammond.
== Quality ==
On a Sony Trinitron 14" CRT television the image is much much better. There is much less ghosting and the image is brighter. Mode 0 is good, mode 1 is fine and mode 2 is readable depending on the colour choices. If I set mode 2, set the background to black and the text to bright white I see multicolours moving through the text but it is still readable. The trinitron television accepts shorter hsync lengths, but at 4, the image changes colour with the Videomaster. Restoring the hsync length doesn't work, it remains at the changed colour and I need to power the computer on/off to get the colours back. For some inks the text appears thinner, for other inks it appears fatter. In terms of image quality with colours, green is best, then red then blue.
With a composite cable the image quality is a little bit better than with the SCART cable but still some ghosting remains. Turning RV1 or VC1 doesn't remove it. However turning VC1 stops the multicolours moving through the text and it becomes much more readable. In mode 2, bright white on black is readable and useable. The colours less than 13 however are difficult to read.
Turning L1 doesn't seem to do anything.
NOTE:
* I am still investigating how to get a better picture out of the Videomaster because I still believe it's possible.
* Unfortunately I am unable to compare this with Amstrad's modulator which it claims to be superior to. * The video master has adjustable variable resistors which may improve the picture and using a composite cable is likely to improve it too.
== Technical ==
IC1 TEA2000 (PAL/NTSC Colour Encoder supporting 64 colours)
RV1 variable resistor- turning this controls brightness VC1 variable resistor- turning this controls colour (too far to the left or right and you get black/white, when colour appears, turning it can result in colour movement in one direction, then stable and then in the other direction). L1 variable resistor- unknown operation. it doesn't seem to do anything.
== Pictures ==
[[image:Vm-h3.jpg|none|left|thumb|200px|SCART cable of VideoMaster]]
[[image:VideoMasterComposite.JPG|none|left|thumb|200px|Output on a Sony Trinitron 14" CRT television]]
[[image:VideoMasterColours.jpg|none|left|thumb|200px|Mode 0, Inks 10-25 on a Sony Trinitron 14" CRT television]]
== User Manual ==