This circuit is the power supply for the amplifier in the previous circuit. The transformer is 5 A with a voltage of 45 V, obtaining 70 V after rectification.
Found in a 1960 Sylvania manual, this circuit can be implemented with a modern equivalent...
This configuration, already presented in other points of this section and website, is of a...
We found this precise crystal oscillator for the 144 MHz band, depending on the crystal used. The...