Blocking Oscillator - Vacuum Tube Oscillator

Gregory explains the Blocking Oscillator topology, used in the Vacuum Tube era, as the standard way of creating pulses and periodic signals in electronics.

The Blocking Oscillator is a relaxation oscillator, that uses positive-feedback, accomplish by a pulse transformer, to create narrow pulses with very fast rise/fall times. It was one the most used Vaccum Tube Oscillator type.

The pulse repetition rate and pulse width is defined by a complex interaction between the tube grid capacitor, grid resistance, pulse transformer magnetizing inductance and the tube characteristics.

Read my article about the Blocking Oscillator
https://gusbertianalog.com/blocking-o...

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Reference:
https://worldradiohistory.com/BOOKSHE...