Cathode-ray tube 3LO1I (3ЛО1И) has electrostatic focus and deflection of the electron beam, with a round screen, green phosphor and intended for monitoring electronic processes by visual observations in different radio and technical devices.
Heater voltage: 6.3V;
Heater current: 0.54 ... 0.66A;
2nd anode voltage: 500V;
1st anode voltage correspond to best focus: 0 ... 50V;
Cut-off voltage: -90 ... -30V;
Diameter of tube (no more than: 33.5mm;
Length of tube (no more than): 115mm.
Maximum operational values:
Heater voltage: 5.7 ... 6.9V;
2nd anode voltage: 500 ... 800V;
Max 1st anode voltage: 150V;
Control grid voltage: -125 ... 0V;
Heater-cathode voltage: -125 ... 0V;
Impedance in control grid circuit, no more than: 1,5MΩ;
Impedance in any deflection plate circuit at 50Hz: no more than 2MΩ;
Voltage between any deflection plates and 2nd anode: -450 ... 450V;
Operation of the CRT with two or more simultaneous maximum values is not permitted.