#40xx

[guerrerense]

a final polish por midcheshireman Por Flickr: the churnet valley railway's cleaners give 4079 pendennis castle a good polishing in readiness for the gala having been a volunteer steam engine cleaner myself I understand the hard work that this job entails--especially the worst of all ----wheels and frames ,inside AND outside !

[yxklubben]

Logic Finder

Ever wanted to quickly decipher a 7400 or 4000 series TTL logic circuit?

Stop by 74xx.org and 40xx.org the next time you need to look up the function of a certain chip.