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by Gordonjcp 1054 days ago
The WDC 65C02 is a current product which you can buy for a couple of dollars direct from the foundry.

Most of the TTL stuff is current manufacture, although you may need to adjust passive components used around "straight" TTL if you use modern 74HCT-family chips.

It's a piece of piss to build 1970s computers with cheap modern jellybean parts that Farnell keep in stock by the million.