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Old 10th Nov 2020, 3:04 pm   #97
Buzby123
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Join Date: Oct 2011
Location: Culcheth, Cheshire, UK.
Posts: 637
Default Re: I found it! A very sorry looking MK14.

It gets better, or worse, depending on your view !.

I didn't give much attention to the display driving chips, as all segs and digits were active at sometime during testing.

Today I received a TS200 chip tester, and it showed my 7442 is bad. ( It also showed my other 7442's are bad as well. How unlucky is that ?. )

So, without 100% confidence in the display mechanism, I am going to have to get another 7442 or 7445 before anymore testing.

Cheers,

Buzby
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