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High Quality Intercom circuit diagram
High Quality Intercom


author: Andy Collinson
visits: 19534
Insect Repellant circuit diagram
Insect Repellant


author: Graham Maynard & Andy Collinson
visits: 19394
Ultrasonic Dog Whistle circuit diagram
Ultrasonic Dog Whistle


author: Tomaz Lazar
visits: 18175
Amplifier Timer circuit diagram
Amplifier Timer
Timer circuit that turns-off your amplifier when idle for 15 minutes. Fed by amplifier tape-output.

author: RED Free Circuit Designs
visits: 4385
Precision Audio Millivoltmeter circuit diagram
Precision Audio Millivoltmeter
Measures 10mV to 50Volt RMS in eight ranges

author: RED Free Circuit Designs
visits: 3055
Audio Perimeter Monitor circuit diagram
Audio Perimeter Monitor


author:
visits: 2679
page: 1


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)

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project subcategories:
All subcategories
 amplifiers
 preamps, filters, effects
 VU meters & spectrum analyzers
 mixers
 other
recently added projects:
Doorbell for the Deaf
 High Quality Intercom
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 Ultrasonic Dog Whistle
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 Magic Wand Conjuring Trick.
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