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Case #102: Dick Had a Cameo Role in Scream 2
By Design News Staff -- Design News, October 22, 2006
Give the little witches and warlocks a real trick when they come clamoring for treats on Halloween with this doorbell-activated soundtrack. All that's required to build this spooky sound generator is a moderate hack of a cassette player, which involves opening the case and rewiring the motor for remote control, and rewiring of your doorbell circuit. Add a simple, roof-mounted speaker, and you'll have the little darlings scattering in every direction at the first blood-curdling scream.
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Download the Build Instructions
| SPOOKY SOUND GENERATOR | ||
|---|---|---|
| Amt | Part Description | Allied Part # |
| 1 | 1K 1/2W Resistor | 296-2187 |
| 1 | 100 ohm 1/4W Resistor | 296-5514 |
| 1 | 47 ohm 1/4W Resistor | 296-2178 |
| 1 | SCR | 568-0639 |
| 1 | K1 Relay 12V ac | 850-0546* |
| 1 | K2 Relay 12V dc | 866-2554 |
| 1 | PSU1 12V dc power supply | 928-9720 |
| * or 24Vac 866-2020 (see text) | ||
| Additional parts required | ||
| R4 10 ohm resistor, rating appropriate for Cue Channel output (needed if the Cue Channel amplifier has an output transformer); Stereo tape player or tape deck and amplifier configured for electrical remote control (see instructions); Continuous-loop tape cassette (TDK EC-3M or similar). EC-3M is a 3-minute loop. One vendor informs me that TDK is the only current maker of loop cassettes and this is the shortest loop they make. | ||
Talkback
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Ah, Memories... I built a number of simpler devices in the '70s for the Livonia Mich. Jaycees...
- 2006-31-10 01:22:22 EST -
Sorry about the parts list, folks, and then I swapped K1 & K2 in my comment to correct...
- 2006-14-10 01:32:49 EDT -
Sorry about the parts list, folks. This might get hard to read if line breaks are not...
- 2006-13-10 18:04:58 EDT -
Part 866-2554 relay, 12vdc does not exist in Allieds database. Same for 866-2020. SCR-5680639...
- 2006-13-10 07:20:18 EDT
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