Dialing detector (CB9304E)

This circuit was found in GE documentation from the 90s. The circuit can be used as a shield for telephone lines.

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Capacitive discharge ignition (CB9522E)
Found in a 90s American documentation, this circuit is used in vehicles with contact breaker. The...
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Found in a 1980s telecommunications documentation, this balanced modulator circuit uses...
Step Down Regulator LM78S40 (CB14405E)
The circuit used is not common today, as the configuration is from 1994. The circuit is from the...