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.
Found in Radio Electronics, this simple indicator circuit uses general-purpose transistors common today....
Found on a Radio Electronics, but also on other sources and placed elsewhere in this section, this low...
This small FM transmitter has a sensitive modulating stage and is therefore suitable for listening...