eBay

Feature:

1. Designed for testing and design of an integrated circuit chip, includes the root of a dynamic index compression circuit (Example: Input 1V, the 1V; input 4V, the 2V; input 9V, the 3V).
2. Taking into account the dynamic and instruction pointer swing moderate, avoiding that the small pointer does not move, the large pointer backing of the state.
3. No independent power supply required, power supply leads directly from the original.
4. Compared with TA7318P / TA7332P, reduce the cost of a transformer, while the chassis inside takes up less space, the installation is more convenient and flexible.
5. Enter the installation of a low-pass filter circuit to filter out high requency interference, power supply for harsh environments (such as car system). output sensitivity, for a variety of specifications header.
6. The most common 12VDC power supply, easy to use on in-vehicle device and PC computers.
7. With power supply reverse polarity . Provide energization pointer against boot pointer base, extend header life.
8. Use 0.5W metal film resistors, large power margin to ensure -time reliable and stable working.

Specification:

Item Type: VU Meter Driver Board DB Meter
Input Sensitivity: 400Hz input with 8025B digital multimeter range
measuring AC mV, input: 97mV, 39 to + 3dB position.
Power Supply Voltage: DC12V 0.12A
PCB Size: 63x52x20mm / 2.48x2.05x0.79in
Backlight Power Supply Terminals: Available DCl0 to 12V 50MA. Power for small bulbs
backlighting.
Drive VU Meter, Meter Sensitivity: Recommended 500uA sensitivity, 630 ohm
resistance. At this time damping effect is the best, the other specifications meter will be different in damping effect, need further adjustments.
Description: The supply voltage must be strict to ensure 12VDC, although more than
a short-term work, but a time will burn circuit.

Instructions:
1. Input Part:
Lin, 0, Rin, is an input terminal for CD output connected to the left
and to the right channel. Or an output terminal connected to the first input terminal
selection stage, the former should not connected to the output stage output or volume
potentiometer.
2. Output Part:
Two VU Meter side ”+” and "—" terminal as an output, respectively, should be connected to the ”+' and '-” terminal of two meter.
Drivable meter sensitivity recommendation: DC 100uA to 500uA. Not exceed 1mA.
Board 2500ohm blue 3296 series potentiometer can adjust the sensitivity of the two
separately header. Clockwise, sensitivity can be improved.
LA, LB is the backlight power supply terminals, RA, RB is the other set backlight power
supply terminal.

Package List:

1 x VU Meter Driver Board DB Meter

Note:

Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.

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Most times you will receive your order within 10-30 business days after we transfer your package to the delivery company. We cannot guarantee the delivery timeframe if the post office has any unexpected delays due to holiday, weather, customs, or other conditions. Some countries like Russia, Brazil, or some European countries may take up to 50 days or er for delivery.

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On Nov 7, 2023 at 09:02:23 PST, seller added the following information:

On Dec 17, 2023 at 17:51:41 PST, seller added the following information: