Mechanical Counter from Cardboard In today's video I show you how to make fully functional mechanical counter from cardboard!

Posted in Arduino Hacks, Tool Hacks Tagged arduino nano, diy oscilloscope, dso, frequency counter, signal generator ...

If you have an old “Racal-Dana 199x” frequency counter or similar 10 MHz internally referenced gear with a poor tolerance “standard quartz crystal oscillator” or bit better “temperature ...

Figure 2 shows the detailed design of the frequency counter. Comparing this schematic to the previous GPSDO schematic, you can see the changes. Along with the removal of the VCXO circuitry, you will ...