Suggested by a 1965 Electronic Design, this circuit has a gain of 15 dB at 45 MHz and can be changed to operate on other frequencies. The tetrode FET is an uncommon component today.
Found in American documentation, this circuit for modulated infrared signals can be tuned to a...
This circuit makes use of components from the time it was published. The TCA151 is not a common...
Found in American documentation from the 1960s, this circuit employs power transistors of the...