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Audio devices - list of circuit diagrams
this simple circuit will indicate peak audio response on an analogue meter, similar to a tape recorders meter
author: visits: 522 
A 15 watt amplifier made using discrete components
author: Sergio Garcia visits: 415 
A variable notch filter with both high and low pass filters
author: Andy Collinson visits: 378 
This circuit uses two quad op-amps to form an eight LED audio level meter
author: Matthew Hewson visits: 370 
Built around an LM380, this amplifier includes tone controls and electronic "soft switching". The soft switching circuitry ensures power is built up gradually eliminating the dc thump.
author: Andy Collinson visits: 353 
Audio levels can be monitored using a small panel meter with this circuit built from discrete components
author: Andy Collinson visits: 316 
Using a single op-amp this easy to make equalizer offers three ranges, low frequency,mid frequency,and high.
author: visits: 307 
A 12 Volt power suppiled designed for Ron's Modular Burglar Alarm. However, being a popular supply voltage this circuit will have many other uses as well
author: Ron J visits: 277 
A switched timer with equal make and equal space periods timing adjustable from over 6 minutes to 38 minutes
author: Andy Collinson visits: 266 |
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