Quartz Crystal Tester

[VU2NAN]

May be accessed at:http://nandustips.blogspot.in/2012/0...al-tester.html73Nandu .

[K8ERV]

Looks good.

Does it work with Galena?

TOM K8ERV Montrose Colo

[WX7G]

I like the simple CMOS inverter crystal tester. Take a 4011 NAND gate and connect the two inputs together. Ground them through 22 pF. Place a 10M ohm resistor from the inputs to the output. Connect the XTAL across the 10M resistor.

[VU2NAN]

Looks good.Does it work with Galena? TOM K8ERV Montrose Colo

Hi OM Tom,Thanks. 73Nandu.

[VU2NAN]

I like the simple CMOS inverter crystal tester. Take a 4011 NAND gate and connect the two inputs together. Ground them through 22 pF. Place a 10M ohm resistor from the inputs to the output. Connect the XTAL across the 10M resistor.

Hi OM Dave,Sure! It's only for nostalgia's sake!73Nandu.

[KO6WB]

Sometimes CMOS can be picky about frequency especially if it has a 5Vdc power supply. I usually use a SN7400 or other IC's in it's class. It works just fine and it really put out the harmonics.
Good job Nandu.
73
Gary

[VU2NAN]

Sometimes CMOS can be picky about frequency especially if it has a 5Vdc power supply. I usually use a SN7400 or other IC's in it's class. It works just fine and it really put out the harmonics.Good job Nandu.73Gary

Thanks, Gary!73Nandu.