CMOS Siren (CB26157E)

Found in the 1991 Electronics Experimenter Handbook magazine, this circuit has good power and is recommended to be triggered by light.

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3.3V Adjustable Regulator (CB21167E)
Found in a Linear Technology documentation from the 1990s, this circuit has the voltage adjusted by...
Redisparable Monostable with the 4047 (CB11444E)
A positive transition in the trigger makes the outputs change state and remain so for the time...
Wien Bridge Oscillator MC3403 (CB15293E)
We found this circuit on Motorola's 1993 Linear Interface ICs. Equivalent operational amplifiers can be...