Electronics Forum > Design, Project

Chrystal Tester Build

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k7rmj:
Here are some pics of the finished tester
Here you can see the inside of the box with the BNC connector and the RCA connectors. They are in parallel for the output.


Next is the inside from the other end of the box. You can see the 12V DC input and the "crystal socket".


I used an 8-pin IC socket for the crystal socket and mounted it on the front of the tester box. I used some small 6-32 nuts as stand-off spacers to keep it from shorting to the case. There is lots of room on that circuit board to add an amplifier and buffer in case it is needed in the future.

Here is the box all buttoned up and ready to rock. Both front view,


and back view


It's a neat little test device. To use it I just connect the 12 volts, and plug in a crystal to the IC socket then connect my old Heathkit frequency counter IM-2410 to the BNC connector.

Now I am ready for step #2 of designing crystal IF filters.

73 DE K7RMJ  Frank

PS: I hope you all have a safe and Happy New Year

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