***SONICA 1 - Headphone Amplifier with TPA6120***
Sonica 1 is a rebirth of an older design of mine. A few years back I designed a small PCB for a headphone amplifier, based on BurrBrown (TI)TPA6120A2 chip amplifier. I made a power supply on a piece of test PCB with a toroidal transformer. The end result was quite pleasing and I have used it since then as my main source for music at home, whenever...
Amplificador com dois canais de 35W com o CI TDA7375 (ou TDA7377).
- Configurado para trabalhar no modo stéreo utilizando duas conexões internas em ponte;
- Recomenda-se alto falantes entre 4 e 8 ohms;
- Os resistores do LM317 devem ser calculados para ajustar a tensão em 12 volts;
- Para maiores tensões, verificar o datasheet do LM317 e do TDA7375;
- O potenciômetr...
I want present to you my new version of the Bluetooth module for a car, home whatever you want.
This module base on the BK8000L module with an additional power scheme for working with car voltage. But it’s also can work by USB.
You can ask me why need to create something new if you can easily buy already exists solution from China?
Here are some pluses:
1. It works.
2. Noise reduction fr...
**This is an experimental electronic circuit, without any warranty.**
Class-A Mosfet Headphone Amplifier
An expansion of the Chaos Nand drone synthesizer.
This one has been fine tuned so sound is a little bit less out of control. Gate inputs have been added to control the characteristics of the sound from a sequencer (but not its pitch).
* POT1: Main pitch. Controls the 2 main oscillators at the same time, with lovely imperfections so they drift a bit out of tune.
LED Music Spectrum generates the beautiful lighting pattern according to the intensity of music. It contains many RGB LEDs which not only turns on and off as per the music but also change color according to the music.
Here is a Music Spectrum using NeoPixel RGB LED Matrix and ARM microcontroller.
<iframe width="560" height="315" src="https://www.youtube.com/embed/K0kpb31bLfU" frameborder="0"...
This is a miniature 0.7W amplifier with adjustable bass boost, gain, and volume controls. Uses 1/8" (3.5mm) headphone jacks on the input and output. Powered by USB or 9v (4-12 VDC, max of 15 VDC). I designed it to use film capacitors and Nichicon audio grade electrolytic capacitors wherever possible in order to preserve the signal and reduce noise. An isolated power supply such as a battery is...
A breadboard-compatible dual non-inverter audio amp built around an opamp.
Exposes most of its internals on pins for more versatility (variable gain, simple filter, ...). Some parts are optional.
Can be stacked to create a mixer with 1 board per stereo channel and 1 board for a master volume.
This is a Raspberry Pi Zero W hat/shield with USB MIDI input, stereo audio output, 3 user-configurable buttons and OLED display.
To use as an audio card, enable PWM audio output by adding `dtoverlay=pwm-2chan,pin=18,func=2,pin2=13,func2=4` at the end of *config.txt* file.
Remeber that HDMI audio output is the default; use `raspi-config` to force output to 3.5mm audio jack.
If you can't find 47uF...
YouTube Video: [https://youtu.be/yDZJ3qElCCo](https://youtu.be/yDZJ3qElCCo)
The LM555 generates an electronic horn signal which is amplified by an LM386. The tone and gain of the horn can be easily varied. The horn can be used in a car, scooter, cycle, and motorbike.