This is one of the first radios with an integrated circuit. The circuit is from a Radio Electronics from November 1969. The circuit is powered by a 9 V battery.
In the figure we give a suggestion of a high-power stage to excite a speaker with the 2N3055. The...
This guitar pedal was found in a 2004 documentation. The signal is transmitted to an FM receiver...
The circuit shown below is from the National Semiconductor's 1994 Linear Applications Handbook. The...