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SiriusHardware · 8th Apr 2020, 10:33 pm

And they were great manuals, weren't they? I notice the NEXT manual looks to be of similar quality.

Had to laugh out loud at the anecdote regarding the warm ULA, operating temperature never has been any guide or clue to whether a Sinclair ULA is OK or not. If the ULA is red hot and the computer is working, the ULA is OK. If it's red hot and the computer is not working, the ULA might still be OK. No wonder they caved in so often.

8th Apr 2020, 10:33 pm	#233
SiriusHardware Dekatron Join Date: Aug 2011 Location: Newcastle, Tyne and Wear, UK. Posts: 11,556	Re: Zx81 And they were great manuals, weren't they? I notice the NEXT manual looks to be of similar quality. Had to laugh out loud at the anecdote regarding the warm ULA, operating temperature never has been any guide or clue to whether a Sinclair ULA is OK or not. If the ULA is red hot and the computer is working, the ULA is OK. If it's red hot and the computer is not working, the ULA might still be OK. No wonder they caved in so often.