Youtor
VuMeter 20 LED DIY DotBar mode with LM3915 and LM386
>> YOUR LINK HERE: ___ http://youtube.com/watch?v=KWLLHiExLc8
This is the Perfect Vu-Meter The best I've ever made. A Vu-Meter with 20 LEDs, two LM3915 and an integrated LM386 amplifier, it is also possible to connect a stereo signal to the input, and a graphical view with dot or bar mode.. This circuit is equipped with an audio transformer (TTC-167) that allows to separate the amplification circuit of the signal from the measurement one.. LM7809 takes care to keep the 9V voltage stable throughout the circuit. • βΊ Features: • 20 LEDs with *standard color scale • LM3915 as LEDs driver • LM386 as Amplifier • 167-TTC Audio Signal Transformer • Stereo Input (Low Level from RCA) • Adjustable Gain • LED Test button • DOT BAR mode • 230V Power Supply • *The standard color scale for a Vu-Meter is: 10 Green LEDs, 6 Yellow LEDs and 4 Red LEDs. • Correct Electric Diagram: [EDIT 5 Ago 2018] - http://bit.ly/2EvjgjB • In the video diagram the 1K resistor on LED 9 must be connected to the cathode (not anode) download the correct diagram from the previous link. • PhotoSlide at: 5:25 • Here I entered a Poll in the video ( 2:05 ) Please answer =) • βΊ Components List: • β 2x LM3915 [ https://goo.gl/QWDhwu ] • β 1x LM386 [ https://goo.gl/WJZck1 ] • β 1x LM7809 [ https://goo.gl/2GCay4 ] • β 3x 1KΩ Resistor • β 3x 330Ω Resistor • β 3x 2,7KΩ Resistors • β 2x 10KΩ Resistors • β 2x 100KΩ Resistors • β 19x 120Ω Resistors • β 1x 1Ω Resistor • β 1x 50KΩ Trimmer • β 1x 2.5KΩ Trimmer • β 2x 1uF @ 25V Electrolytic Capacitors • β 2x 100uF @ 25V Electrolytic Capacitor • β 1x 470uF @ 25V Electrolytic Capacitor • β 1x 10uF @ 25V Electrolytic Capacitor • β 1x 100nF Capacitor • β 3x 1N4007 Diode • β 1x Audio Transformer TTC-167 [ https://goo.gl/doW21m ] • β 10x Green LEDs • β 6x Yellow LEDs • β 4x Red LEDs • β 2x LEDs any color as power LEDs • β 1x Switch (for Dot/Bar Mode) • β 1x Switch (for Leds test) • β 1x DIP 8 Pin • β 2x DIP 18 Pin • β 2x Heatsink for IC LM3915 [ https://goo.gl/2MkKTM ] • β 1x Heatsink for LM7809 • β 2x Female RCA • β 1x Box TEKO AUS12 [ https://goo.gl/vSxWHA ] • β 1x PSU 12V@1A [ https://goo.gl/nrKKzR ] • β 1x On/Off Switch (for 230V) • β 1x 230V Connector [ https://goo.gl/ameKXP ] • β 1x fuse holder (for glass fuse) • β 1x Glass fuse 500mA • β Stripboard • β Thermal paste [ https://goo.gl/kd2Uu6 ] • β 1x LED Socket [ https://goo.gl/MVVYe6 ] • βΊ Similar videos: • The Perfect Vu-Meter Breadboard: • Vu-Meter with 20 LEDs with LM3915 - L... • Vu-Meter LM3915+LM386: • Vu-Meter LM3915 + LM386 + TTC-167 wit... • Vu-Meter 20 LED: • Vu-Meter 20 LEDs with LM3915 (Standar... • Vu-Meter 100 LED: • Vu-Meter 100 LED with 10x LM3915 - DIY • EMF Meter Detector: • EMF Meter detector DIY | how to make it • βΊ Music: • Vexento - Devotion (Intro) • Vexento - Return Of The Heroes (Test) • Vexento - Digital Kiss (Photo slide) • βΊ More videos: / stefano91ste • WARNING: This video is only for demonstration. I don't take any responsibility for damage to things, people and animals. • βΊ My equipment: • Panasonic HC-V180 (Main Camera) • iPhone 6 (Secondary Camera) • #ElectronicProjects #VuMeter #LM3915
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