Radio tube tester L3-3
The radio tube tester was developed at the end of the 50s and was named MILU-1 (compact universal lamp tester, model 1). In 1960, GOST was adopted for the names of devices, and the meter was renamed L1-3. After the modernization of the power supply unit, it was named L3-3, under which it was produced until the end of the 80s.
The radio tube tester L3-3 is designed to measure the main electrical parameters of electronic tubes, as well as to take static characteristics. The device allows you to measure the parameters of receiving-amplifying and low-power oscillator lamps, kenotrons, diodes and zener diodes.
The device is powered from an alternating current with a frequency of 50 Hz with rated voltages of 127 and 220 V, as well as from an alternating current with a frequency of 400 Hz with a rated voltage of 115 V.
Overall dimensions of the device are 515x320x230 mm.
The weight of the device does not exceed 22 kg.