TTL Siren (CB9080E)

This simple TTL siren was found in a 1980s Electronics Today International. The power supply is 5 V and the integrated circuit can be the 7400.

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High Q Notch Filter (CB15639E)
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Basic two-gate oscillator (CB22399E)
This circuit was found in documentation from the 90's, having an LC compensation network. The...
Pulse Triggered Monostable (CB25672E)
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