2 Pcs VU Meter Warm Backlight Recording Audio Level Amp With Driver Module

New

20 available

R701.00

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Regional areas:	3-4 business days
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szulou3786

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Condition

New

Location

International

Bob Shop ID

648347599

Driver board:

The fourth-generation driver board instead of 7318IC drive plate, improved the two disadvantages of 7318 driver: 1. Small pointer swing. 2. Small adjust sensitivity.
Instructions for use: 1. Input AC / DC 12V is the power supply for the drive board. (It is recommended to use a separate power transformer, or independent winding for its power supply! The current is 45MA when drive board does not use the backlight) 2. L, GND, R: This is the driver board low level signal input terminal, used to connect CD machine, computer sound card, pre-class, and other audio equipment, audio signal, when wiring L, GND, R need respectively corresponding to the left, ground, and the right channel. 3. The backlight DC12V is the power supply used for the backlight of the meter after the driver board is rectified and stabilized. (Note: the backlight power supply current maximum support 400MA * 2. When using the maximum current, the supply transformer current can not less than 1A 12W. ) 4.Header interface: pay attention to positive and negative.
5.R1 and R2 are two adjustable resistors on the drive plate that can control the size of the stylus swing.

VU Meter:

Color: Black
Metarial: Plastic
Size: 35 x 35 x 37mm
Measuring range: 0--500UA &pm; 10%
Resistance: 650 &pm; 10%
Accuracy: &pm; 5%
Approved location: Full-scale 500UA
Backlight voltage: AC/DC 6-12V

To extend the life of the backlight bulb, you can use the following methods: 1. Under the condition that the backlight meets the requirement, the working voltage can be reduced so that the life can be greatly extended. 2. AC power supply 10 ~ 12V, series 10 ohm ~ 50 ohm current limiting resistor to reduce the impact on the filament when the boot.
Package includes:

2 x VU Meter
1 x Driver Module