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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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DOORBELL sa ANNUNCIATOR sa DOOR HARP xx ANNUNCIATOR Troubleshooting a doorbell. Replace the cheap plastic cover on doorbell chimes with this Mission-style wooden cover. Installing a second set of door chimes. Six easy steps to hard-wiring a doorbell. Circuit for a six-tone electronic chime doorbell. How to utilize multiple X-10 universal modules to activate door chimes with different sounds. How to use the X-10 remote-control system to detect the doorbell. Trigger a remote doorbell without running wires. Utilizes the X-10 Powerflash remote control device. Electronic door buzzer circuit can be expanded into a toy organ. Fixing doorbells. Troubleshooting a faulty doorbell. Correct wiring pattern for a two-door doorbell system. How to add another chime to a low-voltage door chime system. Replacing a doorbell. How to splice extension wires onto old doorbell wiring. Remote doorbell signal lamp controller. This lamp controller will turn on any kind of conventional 117-volt AC lamp each time the doorbell is pushed. Musical doorbell circuit uses a module that is factory-programmed to play 25 melodies and three kinds of chimes (depending on setting of DIP switches). Code-practice oscillator circuit can also be used as a doorbell or continuity checker. Rebuild your door chimes by installing new plungers in the electromagnets. Repairing electric doorbells and chimes. Troubleshooting electric doorbell systems. Making your door chimes play a tune. Porch light which turns on automatically when doorbell is pressed. Electronic doorbell for use in high noise areas like workshops. Sounds three different tones, depending on the doorbell rung. How to install the wiring for doorbells and chimes. Circuit for a multi-sound chime set. When doorbell is pushed, a six-tone chime is sounded, each tone coming from a different location. Est. cost: under $9. Electronic remote doorbell. How to add a second doorbell wherever you need it. Requires that you connect into existing doorbell wiring, but does not degrade the performance of the primary bell. Est. cost: $12. Radio-controlled doorbell. Wireless system allows doorbells to be located almost anywhere. Two-tone electronic doorbell sounds distinctively different tones when front and back doorbells are pressed. Home security porch light controller. Automatically turns on and off the porch light shortly after the doorbell is rung. Old-house intercoms. Part 2. How to pinpoint problems in old electric bell systems and annunciators. How to restore a mechanical doorbell. Tip on installing a doorbell inside a cold air duct for house-wide sound. Tip for rebuilding a wood push-button doorbell. Tip tells how to use an AC adapter to replace an antique doorbell's battery. Circuit for an electric doorbell which will produce three or more distinctive tones, depending on which door button is pushed. Electronic oscillator circuit replaces a mechanical buzzer. This circuit will avoid burning out solenoids in a door chime should the button get stuck or the wiring malfunction. Simple circuit for an electronic doorbell which will produce a different tone for each of three doors. How to replace the tiny light bulbs in doorbell switches with long-lived LEDs. Build a music box doorbell that plays a different, cheerful tune each time from a collection of 12 tunes. A mixed collection of practical 555-timer IC application circuits. (1) Schmitt-trigger converts sinewaves into squarewaves. (2) Dark-activated relay switch can control lighting. (3) Code-practice oscillator. (4) Electronic door buzzer. (5) LED flasher. (6) Long-period timers. Low-cost electronic doorbell produces a pleasant "ding-dong" sound. Electronic circuits to enhance doorbells. (1) Complete smart-button circuit which also controls electric door locks. (2) Answering machine that plays a message and records the reply when someone rings your doorbell. (3) Basement doorbell. (4) Circuits for adding remote bells to an existing doorbell system. Circuit to mute a stereo sound system whenever the telephone rings or the doorbell is activated. Tip on using an X-10 Powerflash module to turn on a lamp whenever the doorbell is rung. How to wire an existing lighted doorbell in parallel with the Panasonic doorphone. Installing a smart doorbell system. Consists of a light beam sensor to detect visitor, a CCD video camera to view visitor, loudspeaker, and a door open/close sensor. A simple heat sensitive switch wired into a doorbell circuit can serve as a fire alarm. How to test and repair doorbell systems. Information on the basics of a doorbell system, typical malfunctions, and how to repair them. Typical wiring for a 2-door chime system is shown. Tip on checking for a broken wire in your doorbell system. How to repair a doorbell. Wiring a doorbell extension. Three Swiss sheep bells made a unique doorbell. Electric eye can serve as burglar alarm and automatic doorbell. Est. cost: $10. Touch switch allows you to vary the time the switch is on up to 15 seconds or more. Use it to kill TV commercials, doorbell switch, light timer and other jobs. Maintenance and repair of doorbell systems. Flashing-light doorbell circuit is designed to attract the attention of a deaf person. Sliding-tone doorbell circuit. Tips on using a thirty-tune melody microprocessor in a doorbell system, music box, annunciator, etc. Circuit for a loud, pulsating doorbell. Three new IC tone generators are viewed. Includes a circuit for an electronic doorbell that can be used as an add-on to a conventional doorbell system. "Parasitic signaller" makes the doorbell circuit do double-duty as both an annunciator and as a communications system. A surge in the doorbell wiring will cause this buzzer to sound in the basement. Repairing a faulty doorbell. Wooden doll to mount on door waves her arms and legs and rings bells when her cord is pulled. How to troubleshoot a doorbell that won't ring. Reviving a silent doorbell. How to diagnosis the cause of a problem and make repairs. Simple door burglar alarm system that doubles as a doorbell. Use either battery or house current as the power source. | |||||||||
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