Mounting an oscilloscope is the dream of many of our Internet users, although it comes up against numerous obstacles. But if the biggest one, which is obtaining the cathode ray tube, is overcome, with the help of scraps, for example, the diagram we give below can serve as a starting point, changing the transistors can more modern equivalents. The circuit is from a 1973 Argentine magazine Radio Chassis Television. L4 and L5 are high voltage windings according to the tube, considering the existence of a voltage multiplier circuit for the accelerator anode. The maximum frequency displayed is not the highest, only 300 kHz.
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