8 Mar
2008
8 Mar
'08
1 a.m.
On Friday 07 March 2008 15:29, Philip Belben wrote:
Roy J. Tellason wrote:
Them I don't seem to show in my list, though I have lots of 6522 and 6526.
Maybe I'll do some digging and see if I can't find one someplace, but so far
it's not looking good...
--
Member of the toughest, meanest, deadliest, most unrelenting -- and
ablest -- form of life in this section of space, ?a critter that can
be killed but can't be tamed. ?--Robert A. Heinlein, "The Puppet Masters"
-
Information is more dangerous than cannon to a society ruled by lies. --James
M Dakin
I have a bunch of 65xx parts on hand, if anybody
is looking for some...
Well, I'm short of a 6520 PIA! Have you any of those left? If so,
please contact me off list.
When I was 13 (1980. Ouch!) I was given a PET for my birthday. A few
years later I blew up an output buffer in one of the 6520s trying to use
the Cassette 2 motor output as a controlled power supply. We connected
one of those two-tone doobells that uses the back emf from the "ding"
solenoid when you open the switch to sound the "dong". Said back emf
killed the output buffer on that pin of the 6520. It managed to do so
without any noticeable damage to the intervening circuitry, too!
I have other PETs, but (a) I want to preserve my "original" one and (b)
it goes against the grain to scavenge chips from another working system.
My PET is useable, but I have to swap the 6520s around depending on
what I/O function I need...