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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Scratch filter (CB22152E)
This filter for scratched disc noise was found in an English documentation from 1989. The...
SP3422 Littelfuse Low Capacitance TVS Diodes Array
Mouser Electronics owns the Littelfuse SP3422 low-capacitance TVS diode arrays. These components are...
567 Two-Tone Decoder (CB25791E)
This two-tone decoder has a bandwidth of 24%. The circuit is from a 1994 Electronics Now. The...