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Audio devices - list of circuit diagrams
This circuit uses two quad op-amps to form an eight LED audio level meter
author: Matthew Hewson visits: 1101 
Based on the classic Baxendall tone control circuit, this provides a maximum cut and boost of around 10dB at 10K and 50Hz
author: Andy Collinson visits: 1023 
The GEM is an audio power amplifier embodying simultaneously active Class A and Class AB output stages for 100+ Watts into a 4 ohm loudspeaker. The front end pcb will drive up to 100+W variants, or the 200+ Watts version into a 4 ohm loudspeaker load.
author: Graham Maynard visits: 1000 
A 15 watt amplifier made using discrete components
author: Sergio Garcia visits: 870 
Using a single op-amp this easy to make equalizer offers three ranges, low frequency,mid frequency,and high.
author: visits: 818 
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: 795 
this simple circuit will indicate peak audio response on an analogue meter, similar to a tape recorders meter
author: visits: 780 
A Class A // Class AB amplifier rated 100 Watts when driving a 4 ohm loudspeaker
author: Graham Maynard visits: 726 
Audio levels can be monitored using a small panel meter with this circuit built from discrete components
author: Andy Collinson visits: 723 |
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