Monochrome TV Pattern generator (CB9421E)

Using an integrated circuit from the time, this circuit was found in Radio Electronics from the 90s. The ZNA234E is an unusual component today.

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CMOS square oscillator (CB26054E)
This circuit was found in the July 1998 issue of Electronis Now magazine. It is a traditional...
Simple Audio Oscillator (CB18537E)
This oscillator from an old publication uses one of the first commercial transistors, the CK722....
Power Pulsator (CB10590E)
This circuit was published in an English magazine from 1977, but it can be easily assembled since...