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Hi Gang! This is a piezoelectric speaker I got from a microwave oven and modified for use with
my crystal radio. People often ask me where to get crystal earpieces for listening
to their crystal radios. Well, this is probably the cheapest source. Microwave
ovens are a treasure trove of parts to detect the cover often in this section
right here beside performed all sorts of things
right over here we're interested in right now
that blacks the right there which contains appears all occurred crystal
speaker
uh...
and
and
and there you can see the speaker and what's the crystal right there disk
headed back to this whole aboard
orchestra governable peter halpern on the two thousand revolt scale
so basically two volts
look up one and the alligator clips to uh...
one of the meter pro-ltte see other order to cure the meter probes and then
i'll connect them to the crystal
doesn't matter which way you connect things in this case
and adult at the crystal
right til seven hundred sixty eight million votes
to run in ninety one middle so it's going to twenty bolt scale
thus i move very
this meters and on the d_c_ volts uh... scale it's not very good at picking up
the spikes so time to see part of what's going on but you can get me to help
something's going on
so it works
okay so just write and works graceful share what i did
i think one alligator clips neck to the output of the diode
together and to enter into the crystal
kicked another alligator clip to ground
computer and to the other hand the crystal
what's catalyst in here
headshot
operan them speak your mind the microphones the camera you may not here
they're looking for that but
but i need to do is put it you back here to help direct the sound
the end is also expose someone it may be a solid uh... piece of plastic there
michael too
case again old can right here and i'm just gonna cut off
last night and all records manager stop
right
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and they're not quite correct
greater over that whole centered over that wall
the case
clear cut a piece of her plastic kinda get hobby shops
use whatever you have a states want something prior so they can capture of
the uh... salad energy in the back here to get inside
subscribe to that their
refers to better might here have some rubbing alcohol here
thomas sanitize the
end of this is that
there you go there is the end result
i was turned into something
gearing up loud and clear up perimeter microphones if we can hear too
first-grade
well thanks for watching chica bonita channel rims our work from our videos
like this
that was one of step-by-step instructions for making a crystal radio
you start your mother training tips and tricks rehearsal radios including more
of your pieces and for friday one power calculator using solar panel
made out of transistors thanks user mariel magpie was very pronounced that
correctly presidio response one of my videos pointing out that these crystals
are available of microwave ovens antarctic subscriber she liked his
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