>With the move to SMD and even great integration, I
>wonder if there are bucketloads of wire-ended
>resistors and transistors languishing somewhere?
Back in the 1960s I used to peruse surplus electronics catalogs. A lot of items
were discrete parts like potentiometers that could be easily removed from old
equipment. There were also "grab bags" of circuit boards, with the claim being
made that they contained dozens of possibly useful parts for the enterprising
amateur at just a couple of dollars. (At the time, transistors still cost
several dollars each.) The problem was that one had to be particularly skilled
at soldering in order to remove the part from the board without damaging it by
heat. And the leads of all these transistors, resistors, etc. had been cut very
short to be placed into the circuit board, making them very difficult to re-use
in any event.
There was also lots of unidentified military surplus electronic gear, often
large modular units with extra-thick metal chassis and cases. The problem with
these items is that many of them were designed to be run with voltage and/or
current levels not readily compatible with everyday consumer power. (For
example, requiring a power source of 400 volts.)
Automatic circuit board part placement and wave soldering machines have been
around for over thirty-five years, and bulk discrete parts have been long been
manufactured with those machines in mind. Even should you find some unused
parts, I'm not sure what you would do with say, a roll of hundreds of 10K-ohm
resistors. (Without looking, how many of you still remember the resister color
code?)
>We, as a group, could idly sit at home soldering
>together enough NOR gates to make our own
>PDP8 style computer.
Some people want to re-live the past over and over, and some people have moved
on. While I dabbled with electronics as a youth, I'm not really a hardware
person and consequently don't care too much about what the silicon looks like.
And if I was a hardware person, I'd probably want to create something new,
rather than duplicate some fifty-year-old design.