I made a Crystal tester.It show if a crystal is ok or no,and it measurement crystals until 20 Ìhz.I saw the circuit from the Greek electronic forum
http://www.hlektronika.gr .
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Here is the material,resistors,capasitors,diode,plastic box,pcb,transistor,led,battery case,and switch on-off,e.t.c. |
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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.
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From the top. |
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Here i put from down the plastic box side 4 little sponge . |
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| The electronic components is ready over the pcb. |
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And from the othe side . |
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Here with soldering iron i make the cables with jacks. |
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| With soldering iron make the cables. |
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Here it is absolutely ready all the project. |
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I make test with frequency meter at crystal 4 Mhz. |
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| I make test with frequency meter at crystal 8 Mhz |
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I make test with frequency meter at crystal 16 Mhz |
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Click here for you see video |
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