Suggested by a 1968 Motorola power semiconductor manual, this circuit uses a special transformer and transistors from the era. The frequency is 60 Hz.
We found this circuit in a 1982 publication. This transmitter sends its signal to any AM radio...
This very high input impedance circuit is suggested by Texas Instruments. The circuit can be...
This Meter of Standing Wave Ratio (SWR) was found in a 1994 documentation. The circuit uses only...