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Insect Repellant circuit diagram


author: Graham Maynard & Andy Collinson
visits: 7708
High Quality Intercom circuit diagram


author: Andy Collinson
visits: 6840
Ultrasonic Dog Whistle circuit diagram


author: Tomaz Lazar
visits: 6350
Amplifier Timer circuit diagram
Timer circuit that turns-off your amplifier when idle for 15 minutes. Fed by amplifier tape-output.

author: RED Free Circuit Designs
visits: 1949
Precision Audio Millivoltmeter circuit diagram
Measures 10mV to 50Volt RMS in eight ranges

author: RED Free Circuit Designs
visits: 1112
Audio Perimeter Monitor circuit diagram


author:
visits: 831
page: 1
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project categories:
folder Audio (49)
folder Power & high voltage (43)
folder Radio (23)
folder Light & LED (31)
folder Tools & measurement (40)
folder Telephone (18)
folder Automotive (10)
folder Microcontrollers (12)
folder Sensors & control (47)
folder Timers & oscillators (40)
folder Miscellaneous (26)

project subcategories:
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amplifiers
preamps, filters, effects
VU meters & spectrum analyzers
mixers
other

recently added projects:
Doorbell for the Deaf
High Quality Intercom
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POT-PLANT POWER
Ultrasonic Dog Whistle
Quiz Circuit
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Insect Repellant
Speaker Microphone Circuit
Magic Wand Conjuring Trick.

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