Drone machine and annoying noise maker MkII

3,446 views · Published 30 September 2012 · 16:27 · Indexed 6 November 2026

Channel: Amateur Radio VK3YE · 2012 · Music

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This machine was built for a friend who wants it for no useful purpose. It looks different but is electrically similar with the same IC with six oscillators. However there are 3 low frequency oscillators and 3 high frequency oscillators. The former can modulate the latter if required. The circuit is a bit smeared but values are given afterwards.

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