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.