Crystal Tester
My version of a crystal
tester.
And circuit board for the project.
And circuit board for the project.
I
needed to test some crystals for a project I was working on. I
found lots of testers on the internet, but they all where lacking
in one thing or another. I decided to take one of them and add the
features that I wanted to it. This is the result. I also designed a
small circuit board for it.
The circuit provides visual indication of oscillation. A meter
output as well as an output for a frequency counter, or an
oscilloscope.
C+,C- Counter/Scope Connection
M+,M- Meter Connection
SA,SB On-Off Switch
Eagle
Project File - Schematic and Board
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