Closeup of monochrome CGA mod

An extra IC is installed to provide the CGA output. This is a 74LS08 quad 2 input AND gate, configured to buffer 5 video signals (R,G,B, Vsync, Hsync). These signals are wired to a 9 pin D connector with pinouts as per the Premium CGA connector

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Filename:	IMG_3392.JPG
Album name:	wizged / Microbee 64K CIAB (Computer in a Book)
Filesize:	292 KiB
Date added:	Jan 26, 2015
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URL:	https://www.microbee-mspp.org.au/gallery/displayimage.php?pid=241
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