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It's hard to build an oscillator

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219 points chmaynard | 1 comments | 21 Nov 25 07:45 UTC | HN request time: 0s | source
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jhallenworld ◴[21 Nov 25 13:43 UTC] No.46004532[source]▶
Easy negative resistance oscillator: a neon bulb in parallel with a capacitor connected to a DC power supply through a resistor.
replies(2): >>46005368 #>>46007119 #
1. zhrvoj ◴[21 Nov 25 18:18 UTC] No.46007119[source]▶
I built many such oscillators same way. But I used BC107 NPN, connected collector to the ground, emmiter to resistor/capacitornet. Base free. Add LED in series with such connected transistor, and you have LED blinker.