This circuit was found in a 1967 General Electric documentation. Tunnel diodes can oscillate at very high frequencies. These are not currently easy to obtain components.
High quality sound can be obtained from this transistor amplifier. The output transistors must be...
This is a conventional triac dimmer configuration found in a 1986 documentation. The triac used is a...
With the use of a cascade transistor, the dynamic response of a phototransistor can be increased, as...