Bipolar transistors are types of general use like BC548, while the power MOSFET can be of any type depending on the current and voltage in the load. The circuit is from old documentation.
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The operating frequency of this oscillator, found in a technical documentation from Texas...
Using a component of the era, this 1968 Mallory circuit uses an output transformer whose...
Found in Popular Electronics from March 1967, this circuit uses contemporary germanium...