6E2 Indication Meter Audio Level Indicator Level Circuit Board Drive Board Adjustable Sensitivity for Amp Signal Amplifi

Features High sensitivity 6E2 cat eye tube driver board adding a level of input amplifier circuit can be connected to the power amplifier audio signal input terminal and power amplifier audio signal output terminal adjustable resistor VR1 to adjust the input signal amplitude VR2 to adjust the cat s eye tube fluorescent height Note Need to connect 250V DC voltage and 6 3V AC DC voltage After connecting please carefully check whether the circuit is connected correctly and then turn on the power Wiring 6 3V Hot cable voltage access ACDC V 250V voltage access DC voltage V G ground negative power supply IN Left right channel signal accessPackage Inlcuded 1 x 6E2 Indication Meter Audio Level Indicator Level Circuit Board Drive Board