ATHENS 
MY WEATHER STATION, BY DIMITRIS
Location: Peristeri of Athens, Greece
Position: 38░ 00.58' NORTH / 23░ 42.04' EAST
Elevation: 63 meters
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Crystal Tester
I made a Crystal tester.It show if a crystal is ok or no,and it measurement crystals until 20 ╠hz.I saw the circuit from the Greek electronic forum http://www.hlektronika.gr .

Here is the electronic design. Here is the material,resistors,capasitors,diode,plastic box,pcb,transistor,led,battery case,and switch on-off,e.t.c. Here i open holes to plastic box for switch on-off,led,jacks,e.t.c
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Here i keep over the box,switch on-off,jacks,leds,pcb,battery case. From the top. Here i put from down the plastic box side 4 little sponge .
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The electronic components is ready over the pcb. And from the othe side . Here with soldering iron i make the cables with jacks.
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With soldering iron make the cables. Here it is absolutely ready all the project. I make test with frequency meter at crystal 4 Mhz.
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I make test with frequency meter at crystal 8 Mhz I make test with frequency meter at crystal 16 Mhz Click here for you see video
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