This circuit generates a two-tone effect very much alike the cuckoo song. It can be used for door-bells or other purposes thanks to a built-in audio amplifier and loudspeaker. Agreeable, very close ...
This sound generator circuit will produce 6 sound effects from the old west and it shows how far integration can be taken: IC1, a Type HT82207 from Holtek does virtually everything. Only a (small) ...
The behavior of analog circuits can often be characterized by sweeping their inputs with a signal going across a range of frequencies and then observing the output. These sweeps can be composed of ...
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