AUDIO CONTROL CIRCUITS Archive

Of a power amp bass amp filter circuit can be used in different times, in addition + – 60 + symmetrical voltage – 15 volts regulator circuit for limiting transistor..

The circuit is based on the TL072 Op Amp and its output is powered by the bc338 and bc328 transistors. A simple and low cost circuit supply voltage +- 15..

The speaker protection circuit prevents the speaker from burning as a result of DC voltage output as a result of any malfunction in the amplifier circuit, it also connects the..

The circuit is fed with 9 volt batteries based on 2 tl072 op-amps. If desired, it can be used with a 15 volt DC Adapter on the DC rectification and..

A multi-purpose control circuit Low pass, High pass, Filter stages between 30..200khz Parametric equalizer stage There are frequency, level, boost controls, and there is also an electronic switch circuit that..

Headphones are not connected to the amplifier audio outputs, loud sound damages the headphones. A two-channel circuit designed to connect headphones to the high outputs, in addition to the circuit..

Voice Recording Circuit HK828 and LM358 based on the supply voltage 9-14 volt DC Microphone with 45 seconds voice recording can be done recording the sound level rises to the..

Bass Extender – Circuit consists of an opamp (TL074) and a few passive elements (resistor capacitor) supply voltage is 12..20 volts DC.. It is used to amplify bass sounds. The..

You can set the outputs as analog or digital with JP1. There is a schematic prepared with splan and a pcb file prepared with sprint layout. An experimental binary sound..

This device is a mixer that converts the stereo output of the Chapman Stick to mono. The bar has one stereo output, so you must use a dual-input amplifier or..