Obtained from an English publication in the 1980s, when a weather station operated in that country at 60 kHz, this circuit employed only two general-purpose transistors.
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...