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Last Updated
03/31/2019
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Detailed entries for one subject from the INDEX TO HOW TO DO IT INFORMATION. |
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SOUND EFFECTS -- ELECTRONIC sa BELL -- ELECTRONIC sa COMPUTER AUDIO sa THEREMIN sa TONE GENERATOR xx NOVELTY -- ELECTRONIC xx SOUND xx SOUND EFFECTS Add bells and whistles to your electronic projects. Easy-to-use four-function sound chip can be integrated into a variety of devices by adding only a power supply, resistor, two capacitors and a small speaker. Sound-effects generator circuit simulates a European police-car siren, bird noises, spaceship sounds, etc. Sound-effect generator based on a light-controlled tone-burst oscillator lets you generate "wierd" sounds. Tormentor. A small electronic circuit, powered by a 9-volt battery, emits a brief "eeep!" every few minutes for several months. Insanity alarm. Remains silent when set it in an inconspicuous spot exposed to ambient light. Emits a high-pitched, irritating tone when the light is turned off. Est. cost: $7 (kit). Ten-note sound synthesizer produces robot, computer, and space-war sound effects. Est. cost: $15 (kit). Space-age sound machine. Electronic circuit produces the sound effects associated with high-tech laser-type weapons (phasors). Est. cost: $7 (kit). The incredible hot canaries. This novel circuit will emulate the sounds of two birds singing together. They start slowly and then sing rapidly increasing trills as they compete with each other. Electronic fog horn has a variable rate-per-minute and duration of "blow". Learn how electronic games work. Build the C-Game, a two-player game with 12 different game modes and 4 modes to generate sound effects and light-patterns displays. Est. cost: $79. Generate "weird" sounds with this sound-effect generator based on a light-controlled, tone-burst oscillator. Animal sounds piano. Build a 10-key music synthesizer that plays both normal piano-like sounds and barnyard-animal sounds. Est. cost: $29 (kit). The curiosity box. Little black box labeled "Do Not Touch" emits a continuous ear-splitting wail when touched. Noisemaking device gives out with a siren or bullhorn noise. Est. cost: $30. Interval screamer. Electronic noise maker wails if a switch is flipped, but does not turn off easily. Tormenter, a small, battery-powered, solid-state device that emits a brief "eeep" every few minutes. Circuit for a phony telephone-answering-service message beeper. Electronic "air horn" circuit. Electronic Cricket does nothing more than blurt out a brief sharp chirp every so often. Electronic cricket will make a "chirp, chirp, chirp" sound only when the lights are out, thus making it more difficult to find. Use the 555 timer IC to build a battery powered beeper which features adjustable timing and tone. Do-it-yourself electronics. A beginner's guide to building electronic kits of R/C accessories. Part 3. Multi-cylinder "diesel" engine sound unit. Cassette recorder controller. Lets you record theatrical sound effects and control pulses on an ordinary stereo cassette tape for on-cue playback and automatic stop at the end of the effect. Chirrup. An electronic cricket noise maker. Est. cost: $38 (kit). "Blipper" is a case of switches, dials, knobs, levers which cause squawks, whistles, chirps, and lights. "Panic Box" entices a victim to turn on a switch which activates a siren which the victim cannot turn off. Battery-powered, self-contained unit. Uses speaker, siren module, time-delay switch and other parts. Two electronic noise makers. A siren and a noise like water dripping. Gadget box has a built-in siren, metronome, and flashing lights. Used to entertain children or adults. Solid-state device whistles and warbles like a canary. Est. cost: $6. Electronic steam whistle. Est. cost: $8. Squawk box circuit will emit squealing, squawking and other strange noises as your hands touch two aluminum foil panels. Battery powered, it will keep children entertained for hours. Est. cost: $3. Digital electronic circuit will generate the U.S. Cavalry bugle-call to "charge". Features either a high-power or low-power audio output state, depending upon your need. Powered by either a 12-volt dc source or 117-volt ac line. Thirty-minute "electronic virus" circuit. Place this circuit into a piece of electronic equipment. It will do nothing as long as the equipment is in use. But, when the equipment's power is turned off, the "virus" begins to send out a beep every two seconds for about 30 minutes. Destroyer whooper. Circuit for an electronic noise maker that simulates the "whoop-whoop-whoop" battle-station alarm onboard a naval destroyer. Electronic "bonger" toy is a variable-frequency audio oscillator driving a small speaker. Turning a dial changes the notes sounded. Electronic "bird" circuit that chirps and warbles uses non-critical, easy-to-get parts. Sound-effects generator can produce bird chirps, "Star Wars", and ambulance sounds. Basically a dual astable circuit built around two 555 oscillators/timers. Build an IR-triggered sound-effects generator. This oscillator circuit will shriek, scream, howl, groan, creak or make other sound effects when someone passes nearby and breaks an invisible IR beam. The incredible hot canaries. This novel electronic circuit will emulate the sounds of two birds singing together. They start slowely and then sing rapidly increasing trills as they compete with each other. Build the Chirrup, an electronic device that sounds like a cricket. Est. cost: $38 (kit). Electronic noise-maker circuits. (1) Electronic version of the old hand-cranked noise maker that produced a "rat-a-tat" sound. (2) Wailing witch circuit. (3) Short-stroke electronic trombone. Electronic circuit simulates the chirp of a cricket. A photocell shuts down the circuit when light shines on it. Multiplexer-derived circuit to generate all types of musical sounds. Do-nothing circuits causes a speaker to put out a warbling tone every 12 seconds. Circuit for a do-nothing box (idiot box) which produces an audible sound. Three electronic noise makers. (1) Siren, (2) Bird chirper, (3)"Chug Chug" which generates a sound like an accelerating locomotive. Circuits for a simple analog noise generator that produces a random-frequency sound. Magnetic audio generator will do things that an electric generator can't do as easily, such as simulate animal noises or sirens. The noise is generated by modulating a magnetic field by means of the teeth of a rotating iron gear, a principal used in early electric organs. | |||||||||
Copyright © by Norman Lathrop Enterprises. All Rights Reserved. No part of this publication may be reproduced, stored in a retrieval system or transmitted, in any form or by any means (electronic, mechanical, print photocopying, recording or otherwise) without the prior expressed permission of Norman Lathrop Enterprises, except as permitted by law. |
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