Found in a 1967 RCA documentation, this AC power grid contactor can be fitted with modern equivalent components. The SCR and the diodes must be according to the load current.
This power supply is protected from shorts in the load. The BD135 must be mounted on a heatsink...
This amplifier for audio transmission lines was found in a 1961 American publication. The critical...
The maximum frequency of the oscillator shown in figure 10 is on the order of 5 MHz, depending on the...