Free electronic circuit design and schematic diagram
It’s easier to manage if we put the distortion and the compressor effect in one box. This Carlin fuzz compressor use unique method to give sustain and distortion effect in mixed circuit. Seem that the circuit do the dynamic compression and distortion in a single negative feedback loop. Here is the circuit schematic diagram: The dynamic compression is done by […]
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Octave shifting or frequency doubling effect for electric guitar is done by rectifying the original signal, just like AC to DC conversion inside your AC-DC power supply adapter. The circuit for this audio effect is not new, I’ve seen it on many publications. Here I present the circuit’s schematic diagram, but I’ve redesigned the circuit to use single supply instead […]
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It is fun to make a variable space in your small room, but it’s hard to make the actuator to move your wall or room partition. Using analog audio line delay, you can adjust your room virtually. Just turn a knob in your audio set and you can adjust your room size. The circuit described here will make your dream […]
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For anyone who love transistor circuits, here you can find small wattage discrete amplifier. Building discrete amplifier is much more fun and some people say it’s involve more artworks than building the ones with integrated circuit. Look at the figure below for the circuit’s schematic diagram. A variable resistor 470 Ohm is provided in series with two 1N4148 diodes to […]
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When you switch on your amplifier, you can see your speaker pop up with high power, and it can be harmful to your speaker. To make your speaker’s life time last longer, you have to avoid such situation. You can use an electronic circuit to protect your speaker, that connect your speaker to your power amplifier 1-2 second after the […]
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Using only a single chip and few passive components, you can build 8-14 Watt audio power amplifier using TDA2030 chip. Here is the circuit schematic diagram: If you use 4 ohm speaker then you get 14 Watt output power, and around 8 Watt if you use 8 ohm loudspeaker. Make sure the 100n and 100u capacitor is wired as close […]
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Ibanez Fat Cat distortion pedal (Ibanez FC-10 Fat Cat Distortion) is good for blues, rock, pop, alternative, but not for metal. You can hear the fat tone even at maximum overdrive. Here is the circuit schematic diagram. You can see the the first transistor 2SC1815/BC546 is configured as voltage follower, giving a high impedance for the input. The op-amp (5534 […]
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