scope calibrator

It is comforting to believe in the infallible accuracy of one`s test instruments, especially when there are no other standards around I to contradict them. However, instruments, and particularly complex ones such as oscilloscopes, tend to drift with age, and if more than a year or so old can be highly inaccurate. This simple calibrator will check the gain and bandwidth of the Y amplifiers and attenuators and the frequency calibration of the timebase. It is so compact that it can be built into virtually any oscilloscope, making regular calibration a simple procedure.