Absolutely agreed Jim
I recycle anything and everything! The older the equipment, the better,
since it will have more "normal" sized components and less SMD ones. Also,
older equipment had less IC integration so more components were required to
perform the same function. If it's so old it contains VALVES (tubes to you),
then all the better!
Sounds like a nice brain-teaser project. What band are you making it for?
I think it's a brain teaser trying to make a transceiver out of the parts in
that monitor. Of course, there are no variable capacitors. But plenty of
diodes which can be pressed into service as varicaps! Perhaps you could do
the same and get away without adding variable capacitors from "outside"?
73 Hans G0UPL
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-----Original Message-----
From: jstrohm@... [mailto:jstrohm@...]
Sent: 11 February 2005 06:19
To: BITX20@...
Subject: [BITX20] On the subject of recycling ...
You don't have to stop at monitors.
I always comb the swapfests and dumpsters (dustbins to most of you) for
outdated computer slot cards. My favorite find is always an IDE 2400
baud modem. They always have a speaker, an LM386, at least one voltage
regulator, and a relay or two. Plus many usable passive components
like the DAA transformer and a crystal or two. Second best? An
external 2400 baud modem -- unless it's in a case you can re-use.
That's a big plus.
And I don't turn down unspecified but nicely priced junk -- at least
where I live, we see some awfully high-tech near-microwave stuff being
thrown away.
My current brain-teaser is to put a single-band tunable CW transceiver
into a round candy tin 13 mm tall by about 45 mm in diameter, not
counting battery or speaker. Made from computer junk. With calibrated
separate TX / RX tuner dials inside.
Well, I may have to get variable capacitors and resistors from
non-computer sources.
Jim N6OTQ
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