Preamplifier circuit TL072 op amp based on the previously shared “NE5532 Preamplifier tone control” circuit is controlled according to the deeper and a little more powerful stereo two-channel preamplifier and solid bass, treble, balance, volume control. TL072 op amp tone control preamplifier circuit power supply +-12v (7812 7912 negative positive regulator, the regulator) low flow for taking small 12v control by connecting to the circuit in series.
Preamplifier Tone Control Circuit TL072 scheme belongs to the eagle, pcb files:
Tone Controlled Preamplifier Circuit TL072 Opamp
Password: 320volt.com
Published: 2011/02/07 Tags: audio control circuits
3-Channel Push Button Selector Circuit
This is a practice used in simple selector circuit. A, B, C are three contenders. The first press of the button Questions and know the warning LED lights Dieren bass even burn later. RESET button LED extinguishes the warning being burnt.
Selector Circuit