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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Class A inverter (CB7181E)
This circuit was found in the 1967 RCA SCR manual. The circuit generates approximately 300 V at a...
Night timer (CB22149E)
Once turned on, this circuit causes an LED to remain lit for approximately 30 minutes. Larger...
High Voltage Regulator (CB14323E)
The circuit shown was found in the National Semiconductor's Linear Applications Handbook of 1994....