General Purpose CMOS Switches (CB24987E)

This bank of switches can be programmed in a variety of ways for logic experiments. The circuit is from August 1986 Radio Electronics magazine.

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Diode Bridge Power Supply (CB4244E)
This is the traditional configuration of an unregulated bridge rectified power source. The circuit...
Two-Tone Buzzer (CB24121E)
This unijunction buzzer configuration appears in this section from many publications and sources. The...
Overtone Oscillator II (CB4585E)
In the figure we show a configuration for a crystal controlled overtone oscillator using a...