Hi!,
> There must be a reason why it
> isn't an LS374, so I'm pretty sure I can't use that one. What else should I
> use, maybe the F374? After all, the chip (UC3) is part of the clock and
> timing circuit ... Or should I go for the HC374 or HCT374?
As I recall, the VIC-20 also has a regular Schottky-TTL chip (74s04, not
LS) in the oscillator circuit. I think the closest one should be the F
TTL. But if it will work? I don't know. The LS didn't work as I
remember.
L.
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