Synchronized automatic switch (CB9260E)

This control circuit up to 1 kW was found in a 1967 RCA documentation. The components are from that time, and modern equivalents can be used.

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RAM Backup (CB24835E)
This circuit is from an August 1984 Radio Electronics magazine. It monitors the state of a RAM...
Line driver (CB21324E)
Analog Devices suggests this circuit in documentation from the 1990s. The circuit is for 75-ohm...
Versatile Astable Multivibrator (CB25329E)
This circuit, which can be built with several CMOS gates, was found in the March 1996 issue of...