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LED Audio Level VU Meter Using Transistors
https://circuits-diy.com/led-audio-level-vu-meter-using-transistors/
A volume unit (VU) meter is a device displaying a representation of the signal level in audio equipment. They are used in telephone installation and radio broadcast stations. Consumer audio equipment often features VU meters, both for utility purposes (e.g. in recording equipment) and for aesthetics (in playback devices).
Amazon.com: led vu meter
https://www.amazon.com/led-vu-meter/s?k=led+vu+meter
LED VU meter not sensitive enough at low volumes ...
https://www.electro-tech-online.com/threads/led-vu-meter-not-sensitive-enough-at-low-volumes.162951/
1 day ago · I am TRYING to build a LED VU Meter to serve as a basis for a spectrum analyzer. Before I move onto the bandpass filters, I need to conquer the actual display. It is based on this design I found on the web. It's 12v DC powered. R1 is 100k, R2-10 is 470k, D1-10 is 1N4148, LEDs are 3mm 2v or 3v...
Jual VU Meter 10 Level Column Light LED Electronic …
https://www.tokopedia.com/teknik89/vu-meter-10-level-column-light-led-electronic-crystal-sound-control
VU Meter 10 Level Column Light LED Electronic Crystal Sound Control di Tokopedia ∙ Promo Pengguna Baru ∙ Cicilan 0% ∙ Kurir Instan.
LED Audio VU Meter - sound-au.com
https://www.sound-au.com/project60.htm
Figure 1 - The LED VU Meter Circuit L1 to L7 will normally be green (normal operating range) and L8 to L10 should be red (indicating overload). This gives a 9dB overload margin when the unit is calibrated as described below. As shown, full scale sensitivity (with VR1 at maximum) is 4 Volts peak (approximately 2.8 volts RMS).
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