This amplifier, whose mounting on a printed circuit board was described in Radio Electronics of October 1960, has 35 W of power. The power supply uses a transformer and a set of 5 tubes.
This 2 meter (144 MHz) preamplifier is intended for use with portable transceivers. The...
This circuit was found in a 1970s RCA publication. Transistors support modern equivalent types....
The circuit presented is from the Motorola Linear Databook of 1990. The integrated circuit is a...