Trigger circuit: A trigger circuit is used to convert the incoming signal into trigger pulses, so that the input signal and the sweep frequency can be synchronized.
The trigger circuit is activated by signals of a variety of shapes and amplitudes, which are then converted to trigger pulses of uniform amplitude, for the precision sweep operation.
Time base Generator: A time base generator is used to generate the saw tooth voltage required to deflect beam in the horizontal section. The circuit used to generate the saw tooth is called the continuous sweep generator. But the disadvantage of the sweep generator is that, it cannot follow the variations of fast varying signals, like voice signals or music signals. Hence this circuit has to be modified. The modified circuit is called the triggered Sweep Generator. The timing circuit of the time based generator gives the time/div control on the front panel.
Horizontal Amplifier: The Horizontal amplifier is used to amplify the saw tooth voltage, before it is applied to the horizontal section. The block consists of a push- pull amplifier