Here the circuit diagram of Maestro Boomerang pedal / Wah-Wah pedal for electric guitar effect. Note: Transistors Q1 and Q2 were designated P-2356. The Maestro Boomerang is not only a wide range wah wah pedal but also a volume pedal. It’s deemed as one of the best wah pedals ever built – and I totally… Read More »
Below diagram is the circuit diagram of Dan Amstrong Blue Clipper fuzz, effect for electric guitar: The Blue Clipper is a thick sounding fuzz with gargantuan sustain. The Blue Clipper delivers a nice, thick fuzz like the Muff, but this unit packs a little more bite. The big difference is that the gain level is… Read More »
Here the schematic diagram of Axe Grinder Electric Guitar Effect pedal. You may download the PDF version at the end of the post. The Axe Grinder is designed with a few key fetures in mind, it not only serves a wide range of distortion sounds clipping part of the effect, it also gives the user… Read More »
Below is a mic compressor circuit that uses transistors as active components. VR1 and VR 2 is used to control the tone from the microphone, while VR3 and VR4 strengthening works to control the audio signal in the compressor mic. C10 must be used in this circuit. The circuit I got from my local computer… Read More »
The following image is the scheme diagram of six LED stereo VU display circuit which build using Dot/Bar Display Driver IC LM3915. This VU display should be connected before amplifier module circuit. You may connect this circuit at pre-amp output, tone control input/output or equaliser input/output. This circuit powered with 12V DC supply. About LM3915:… Read More »
This is a stereo VU booster circuit diagram based on transistor FCS9014 which usually used for pre-amp and regulator circuit and switching. With simple circuit design, this device could be built easily. Scheme diagram, bottom PCB layout and component placement provided on the following image: This circuit should be connected to audio channel before amplifier… Read More »
This is a 60W AF power amplifier based on single Sanyo integrated circuit STK-0060II. This circuit delivers 60W mono/single channel audio output. For stereo channel, you may build two identical circuits and of course doubled the power supply current (use 5A transformer for stereo application). The amplifier circuit uses symmetrical (dual polarity) power suppy. Recommended… Read More »
This is the circuit diagram of sound effects generator. All sounds in this circuit are generated by HT2884. The HT2884 is a CMOS LSI chip equipped with tone circuit, noise circuit, and other control logic to generate various sounds to be used in sound effects production. This IC features: single power supply (2.4V – 3.3V),… Read More »