Universal oscilloscope `` C1-15 ''.

Instruments for adjusting and controlling the PTA.The universal oscilloscope "C1-15" was presumably produced since 1974. Together with the preamplifiers "C1-15 / 1", 2, 3, 4 and 5, it is intended for the study and observation of visually forms of pulsed and continuous electrical processes. The amplifiers are partially described in the manual and on other pages.