آمپلی فایر

A lot of professional preamplifier circuit that hosts the volume control bass, treble, medium, balance, mute, loudness (low bass tones reinforcing) and volume control settings can be made. Professional Preamplifier NE5532 op amp circuits used in the two units... بیشتر بخوانید

Previously I shared 40 led vu meter circuit using Audio Spectrum Analyzer, Spectrum Analyzer circuit 10 channels (32Hz, 1kHz, 2kHz, 4kHz, 8kHz, 16kHz, 64Hz, 125Hz, 250Hz, 500Hz) on a total of 400 LED’s Spectrum Analyzer circuit 12v DC voltage... بیشتر بخوانید

Previously KA2281 20 LED mono VU Meter to the circuit I shared the stereo version also am sharing this circuit 2 ka2281 used pcb printed circuit board dimensions mono version of the same operating voltage 12v dc R –... بیشتر بخوانید