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Old 4th Nov 2020, 12:25 am   #66
Join Date: Aug 2011
Location: Newcastle, Tyne and Wear, UK.
Posts: 8,539
Default Re: I found it! A very sorry looking MK14.

The 'plain' 7408 versions have higher output current capability or so I understand, but at the same time they also limit the current to a safe higher value so the 7-segment displays do not require current limiting resistors.

If you try to use more modern / conventional 74x08s you will probably get a rather dim display.
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