- Published in issue 3/1999 on page 16
VGA display tester:
check those computer displays
The portable test instrument described in this article supplies RGB test signals for VGA colour displays as used in many of today’s computer systems. The tester supports line frequencies of 31-83 kHz, and raster frequencies of 55-114 Hz, with selectable sync polarity as a useful extra. The VGA tester not only allows ‘suspect’ displays (‘super bargains’) to be tested on the spot, it is also great for computer service and repair shops.