SCOPE CALIBRATOR Electronics Circuits Electronics Microcontroller

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SCOPE CALIBRATOR

The calibrator operates on exactly 100 kHz providing a reference for calibrating the variable time base oscillator of general purpose scopes.

Figure 1 Schematic of 12 V Scope Calibrator

For example, if the scope is set so that one cycle of the signal fills exactly 10 graticule divisions then each division represents 1 MHz, or 1 microsecond. If the scope is adjusted for 10 cycles on 10 graticule divisions. (1 cycle per division) then each division represents 100 kHz or 10 microseconds.

Components

Name List	Quantity
Transistor 2N3565	1
0.001 uF Capacitors	1
0.003-0.001 uF Capacitors	1
100 K Resistors	1
22 K Resistors	1
Crytal 100KHz	1
Push Button Switch	1
Battery 9V	1