A video tester for tracing, checking and servicing the video stages of certain radar receivers has been developed. This unit is essentially a pulse generator giving 0???????·7 microsecond and 1???????·9 microsecond pulses. Delay line technique of pulse generation has been employed to get sharp rise time (0????????06 microsecond) pulses. The delay lines have been designed by Guillemin's analysis. Complete circuit details are described.
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