The circuit is a variant of the blocking oscillator that forms an unregulated voltage boost converter.
3.
Some cameras use a blocking oscillator to strobe the flash prior to a shot to reduce the red-eye effect.
4.
This circuit is also known by other names such as " joule ringer " or " blocking oscillator ".
5.
A "'blocking oscillator "'is a simple configuration of discrete electronic components which can produce a free-running signal, requiring only a resistor, a transformer, and one amplifying element.
6.
The Amplified Clavichord and Electric Organ no longer exist, but the Electric Keyboard Oboe-like the organ, based on blocking oscillator circuits and capable of microtonality-, the Electric Keyboard Drum, which uses buzzer-like relays, and the Amplified Cello are still working.
7.
The " Chardack-Greatbatch " pacemaker used Mallory mercuric oxide-zinc cells ( mercury battery ) for its energy source, driving a two transistor, transformer coupled blocking oscillator circuit, all encapsulated in epoxy resin, then coupled to electrodes placed into the myocardium of the patient's heart.
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