> > It's also that this is the 'classic computers' list. To me, classic > > computing means > > rather more than just the hardware. It also covers the design and > > construction methods, technology and so on. And there seems to be > > precious little of that in a modern microcontroller acting as a clock > > oscillator. > > > There isn't., but some-times we have to compromise, and sometimes we choose > to compromise. I looked at the circuit of the M484 and I might not have the > parts in the parts box...
I assume you mean M452 here, I can't find a reference to M484. I suspect many of the parts are not that critical. > .. its also a nasty hybrid design with DC biased NPN and PNP transistors. I > find it ugly and can see it being a pig to debug, though it simulates fine > in LTspice... I didn't find it that hard to basically understand in my head. After all, there are only 4 transistors, and 2 of those are just an output buffer. Quite why having both NPN and PNP transistors makes it harder to understand I do not know. I will leave the flames about Spice and simulation packages in general for another day. -tony
