VU meter Header DB Level Header for Recording Audio with Back light TR-35

描述

Professional, high Class dB : -20~+5dB 0dB=1.288V+/-10%, calibalated DCR= 650ω, If=450uA Lamp : White LED x1pcs ,10~20mA (has no resistor inside) Led Lamp voltage : 2.2~2.6V So, you need the resistor :270ω 1/4W ,if VDC=5V 390ω 1/4W ,if VAC/DC=6.3V 1000ω 1/2W ,if VAC/DC=12.6V need external resistor,diode, capacitor (if 1Khz 0dB=1.288Vrms,R1=470ω,VR1=100ω, or R1+VR1=500ω) Dimension : 35.0x35.0x38.0mm (WxHxD) View size : φ34.0mm Mounting hole/pitch : φ3.5mm/28.0x28.0mm Note : On the center 2 pins are for meter coil, other 2 pins are for LED Net weight approx.: 25g pointers Material: Nickel silver strips Pointer color: brown The direction of the pointer swing :left to right Pointer length : 17.3 ± 1 mm from the center axis to the needle end Pointer width : 0.45 ± 0.05 mm