This simple SCR trigger was found in a 1965 General Electric SCR manual. The circuit makes use of a diac, and the transistor supports an equivalent.
With this converter it is possible to tune the signals of the 15 MHz WWV.in AM receiver. WWV is...
This negative voltage source was found in a Popular Electronics from the 90's. The transformer has 120V...
This circuit is from the Audio Handbook of the National Semiconductor of 1977. Its purpose is to...