Tape recorder oscillator (CB8289E)

Found in National Semiconductor documentation from the 1980s, this oscillator is used for polarization for cassette tape recording heads.

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Car Timed Alarm (CB16368E)
This circuit was obtained in a 1982 publication. There are many types of car alarms available to...
Instrumentation amplifier (CB6839E)
Found in Linear Technology documentation from the 90s, this circuit has a 100 V common mode...
Polarity Indicator Shield (CB1330E)
This circuit can be used as a polarity indicator shield the direction of current circulation for...