1PC SO52 DC 100MA panel meter with blue backlight for tube Amplifier speaker power supplier
Backlight power supply can be either DC or AC. For DC power supply, please pay attention to the positive and negative terminals; reversing them may burn out the power supply.
Recommended supply voltage: DC 9V. Operating current: 10-20mA. A current-limiting resistor of 200 ohms or more must be connected in series; otherwise, the LED inside the meter may be damaged.
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