Date   : Thu, 28 Oct 2010 13:34:29 +0100
From   : jgh@... (J.G.Harston)
Subject: Reversing the Tube ULA (destructively)

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@...