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Sound generator circuit diagrams
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December 27, 2010
This is a basic 555 squarewave oscillator used to produce a 1 Khz tone from an 8 ohm speaker. In the circuit on the left, the speaker is isolated from the oscillator by the NPN... [more]
December 8, 2010
This circuit is intended for children fun, and is suitable to be installed on bicycles, battery powered cars and motorcycles, but also in models and other games. [more]
December 3, 2010
This circuit generates a two-tone effect very much alike the cuckoo sound. It can be used for door-bells or other purposes thanks to a built-in audio amplifier and loudspeaker. [more]
December 2, 2010
Producing low-distortion sine waves, this oscillator operates over the range 16 to 22000 Hz. [more]
November 30, 2010
This circuit uses a UM3561 IC to produce four different sound effects [more]
November 30, 2010
This circuit uses the Holtek HT2884 IC to produce 8 different sound effects. [more]
November 10, 2010
Feeling chirpy? Attract new friends with this modified hartley oscillator. You could also use it as a replacement doorbell. [more]
October 4, 2010
This circuit is intended for children fun, and can be installed on bicycles, battery powered cars and motorcycles, but also on models and various games and toys. With SW1 positioned as shown in the circuit... [more]
circuit from:http://www.extremecircuits.net/2009/12/two-tone-siren-circuit-schematic-using.html
October 3, 2010
This circuit generates an astonishingly real imitation of the chirping of the cricket. A suitable audio wave form is generated by IC2 and related components, driving the loudspeaker through Q1. To allow a more real-life... [more]
circuit from:http://www.extremecircuits.net/2010/01/cricket-chirping-generator-circuit.html
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