AD converter with LCD display (CB9025E)

This circuit was obtained in Teledyne documentation from the 70s. The converter component is uncommon today.

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Stereo Equalizer (CB16706E)
In the original 1992 application, this passive circuit was intended for use in the car. At that...
FM or VHF Receiver (CB4578E)
This 1995 circuit uses an audio amplifier that is no longer common today. However, other...
RIAA Equalization Amplifier (CB4952E)
This circuit is from an 80's documentation. The integrated circuit is from the time and the...