Small-sized oscilloscope `` LO-70 ''.
Instruments for adjusting and controlling the PTA.Oscilloscope "LO-70" from the 1st quarter of 1967 produced the Saratov electrical appliance plant named after Ordzhonikidze. Electronic oscilloscope "LO-70" is a universal device for radio amateurs. It is designed in a small-sized design. The oscilloscope is designed to observe and control the forms of electrical oscillations, as well as for tuning amplifiers and low frequency generators, troubleshooting TVs and receivers. Brief technical characteristics of the oscilloscope: Screen diameter - 50-70 mm. Amplifier Y: Sensitivity (E) at a frequency of 1 KHz - 40 mV. Nonlinear distortion factor 5%. Bandwidth with uneven frequency response: from 25 Hz (a) ± 3 dB to 500 KHz. From 25 Hz (b) ± 5 dB to 1000 KHz. Input capacity 25 pF. Input impedance 100 kOhm. Sweep generator: Input frequency range in nine sub-bands from 10 Hz to 20 kHz. Nonlinear distortion: (a) in subranges 3 ... 7 no more than 15%. (b) in subranges 2 and 8 no more than 25%. Sweep length along the `` X '' axis in the subranges of 1 ... 8 - 55 mm. The minimum signal amplitude on the cathode-ray tube screen, providing stable synchronization is about 15 mm. The minimum amplitude of external synchronization is 10 V. The device is powered from an alternating current mains voltage of 110, 127 or 220 volts at a frequency of 50 Hz. The power consumption of the device is 50 W. The device can operate at temperatures from + 15 ° to + 35 ° C. The dimensions of the device are 275x185x120 mm. Its weight is 5.5 kg.
