A DC Block to Measure Low Frequencies

A 7Hz Low Pass Filter to measure voltage ripple on power supply rails.

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The Low Frequency, Low Noise Amplifier Board

Sometimes one may want to measure tiny signals’ frequency contents at frequencies just above DC.

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The IN-9 Nixie Clock

A 60 Nixie tubes contraption that I postponed for 5 years...

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Radiation Pattern Measurements in an RF Chamber

Very few are lucky enough to use such a piece of equipment... so I figured I'd share this experience with you!

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Project In A Day: When Is My Next Bus?

Made using only components from my stock !

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Making the Electronics for a 24GHz Doppler Sensor

I couldn't believe my eyes when I saw how tiny that sensor is !

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