> I was never a service tech, but here in Ohio, the _only_ static PETs I've
> ever seen were 6550-based. I didn't know there were any with 2114s until
> I joined this list. It explains another Tramiel story. When the VIC-20
> was being designed, Jack told his engineers that he didn't care how much
> memory the new computer used, but it had better take the 2114 chips that
> C= had a warehouse full of.
Never heard that story before. PETs up to and including 8096 used a couple or
more of 2114s for video RAM, though.
>> The old PETs don't AFAIK have the internal expansion connector - they have an
>> edge connector sticking out at one side. Very useful for toggling RESET with
>> a pair of tweezers!
>
> Don't miss!
If I've got to the point where I need to hit RESET, it doesn't matter.
Occasionally I corrupted I/O registers and disabled the interrupts that serviced
the keyboard. You'd better not miss when toggling IRQ with the tweezers!
Philip.
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Received on Wed Mar 22 2000 - 10:42:06 GMT