[BBC-Micro] Reversing the Tube ULA (destructively)

J.G.Harston jgh at mdfs.net
Thu Oct 28 13:34:29 BST 2010

Theo Markettos wrote:
> There are imaging and etching techiques to strip off the layers one by one,
> but they require a lot of trial and error... and there aren't plenty of
> samples to test on.

Chris Smith has successfully done this with the Spectrum ULA:
http://www.zxdesign.info/book - It's a fascinating read. He
used up three or four ICs to get the full image.

J.G.Harston - jgh at mdfs.net

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