Top Ten ICs (was Re: [sdiy] Analog Design Book)
Roy J. Tellason
rtellason at blazenet.net
Fri Oct 22 19:37:03 CEST 2004
On Friday 22 October 2004 02:50 am, R. D. Davis wrote:
> Favorite sources of parts, however, were items that I disassembled,
> such as old TV sets found on the side of the road... still have
> assorted tubes from them.
Yeah, I scrapped a lot of stuff over the years. It's getting to be less fun
these days, though.
> Regret taking some things apart for parts, however, such as a chart
> recorder, a 1940's or so DuMont oscilloscope and some transistor radios that
> would now be collectors' items.
I don't think that I can list much that's in that category.
> Anyone here need a 25" Zenith picture tube from the early 1970's? :-)
> Got that, and many other parts, from a roadside throwaway. Still have
> that CRT taking up space on a workbench; can't bring myself to discard
> it since it might be useful for something, perhaps something SDIY
> related, or to someone, some day. Anyone here ever used a picture
> tube in any sort of audio project having nothing to do with video,
> just using the tube for some sort of interesting characteristics? Now
> then, can I get nominated for the SDIY Packrat Award for that? It's
> been sitting there for about 25 years!
At one point in time I had a whole bunch of tubes around from having scrapped
out a bunch of tv sets. And I actually encountered a guy who was interested
in taking them off my hands. So he came over and got 'em. He already had
several. I have no idea what sort of plans he had in mind for them...
<...>
> Other than that, my first IC other than that was some sort of amplifier chip
> which was part of a Lafayette electronics kit (anyone here remember
> the Lafayette electronics stores?).
Yes! Their catalog was one of my wish-lists. And the stores I could get to
never seemed to have much of any of that stuff in stock, when I went
there...
For some reason "Argonne" transformers sticks in my head.
> Didn't get into digital chips until around 1980.
>
> > (The 555 isn't on my "first ten" list only because it was out of
> > stock!!)
>
> That chip is on my "always have some in stock" list (actually, I
> bought enough back in the mid 1980's so that I still have some in
> stock to play with).
Heh. :-)
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