/diy/ - Do It Yourself

Anonymous Mon Aug 10 02:42:29 2015 No.856677 [View]
File: 21 KB, 1200x640, Zener_noise_generator_10_Hz_to_1_MHz.png [View same] [iqdb] [saucenao] [google]

>>856565
Afaik at least some of those flickering lights use Christmas card ICs. You know, those annoying noise makers.
A well-known digital way of producing noise-like signal would be an LFSR.
https://en.wikipedia.org/wiki/Linear_feedback_shift_register
Those are available as complete ICs as well, but they can be difficult to find.
Then there are analog methods like amplifying amplifier/resistor noise and amplifying zener diode noise. Pic related.

I'd use a small microcontroller, though.

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/diy/ - Do It Yourself

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