Johnson described three ways of producing an integrated one-transistor oscillator.
2.
Original sets used a transistor oscillator; newer phones use an integrated circuit.
3.
On September 12, he presented the first IC prototype, which was a single-transistor oscillator with a distributed RC feedback, repeating the idea and the circuit in the 1953 patent by Johnson.
4.
IMD is also distinct from intentional modulation ( such as a frequency mixer in superheterodyne receivers ) where signals to be modulated are presented to an intentional nonlinear element ( mixers such as mixer diodes and even single-transistor oscillator-mixer circuits.
5.
The Accutron " ( right ) ", an electromechanical watch developed by Max Hetzel and manufactured by Bulova beginning in 1960, used a 360-hertz steel tuning fork as its timekeeper, powered by electromagnets attached to a battery-powered transistor oscillator circuit.
6.
The designers originally devised a system clock using a crystal-controlled transistor oscillator driving a multitude of transistor amplifiers because each transistor was too low powered, but since the phase shift of the amplifiers could not be controlled to the required tolerances this had to be abandoned.
7.
The Rock-Si-Chord, manufactured by Rocky Mount Instruments ( RMI ), a division of Allen Organs Inc, was a solid-state instrument using one or two transistor oscillators per key, and was the first example of a type of instrument generally known as the electronic piano ( contrast electric piano ).
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