Curve tracer christmas calendar 5 – Neon bulb

Todays post is going to be on those Neon bulbs often used as indicators. I had some 65V small neons to play with.

Did you know that a oscillator could be made with a neon bulb as the only active element? This must be the smallest component count oscillator there is?

Oscillation frequency should be close to 1/(2*pi*R*C). If you build this, please let me know how it works for you. The voltage needs to be approximately twice the neon bulb strike voltage, and R1 should preferably be around 1M ohms. Play around with the values and see what you get.

For the next days I think we will do some active components.

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Author: Thomas S. Knutsen

Electronics engineer with interests in RF and analog electronics.

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