Cathode-ray tube 3LO1I has electrostatic focus and deflection of the electron beam, with a round screen, green phosphor, and an aver age persistence, intended for monitoring electronic processes by visual observations in different radio and technical devices.

Basic technical specifications

• 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 defl ection plate circuit at 50Hz, no more than 2MΩ

•Voltage between any deflection plates and 2nd anode ............... -450 ... 450V

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