TN-90 DB Sound Voltage Meter with Backlight for Preceding Electron Tube Biliary Machine of High Precision VU Head Power Amplifier Level Meter

Features: Add backlight board, white LED light source with homogenizer, make light diffuse evenly, solve the problem of LED light pointing, hollow dial bottom color is pure black, after power-on calibration lines and characters transparent green light is very beautiful. Specification: Movable part: moving coil type Pointer Material: Zinc White Copper Pointer color: orange Pointer swing direction: from left to right Length of the pointer: from the center axis to the needle tip 44 +1 mm Width of pointer; 0.45 + 0.05 mm Direction of Use of Meter: Vertical Standard test conditions: temperature 20 C, humidity 70%. If the test results do not differ, the test can also be carried out at room temperature and humidity. Current Sensitivity: The Sensitivity of the Pointer from Zero to Maximum (Full Scale) 960uA + 8% Internal impedance: 650_+10% Insulation impedance: 500V DC plus 50M ohm for meter outer box and electrical circuit. Insulation impedance of meter outer shell and electrical circuit is tested by 500V DC voltage. Package included: 1 x VU Panel Meter Audio Power Amplifier Indicator DB Table Level Header Details pictures: