Broadband amplifier (CB9179E)

Found in an old Popular Electronics, this circuit has a gain of 20 dB. The integrated circuit is uncommon today.

a Optical sensor (CB8783E)
Suggested by a 90s EDN, this circuit supports almost any LED as a source and a phototransistor as a...
LT1074 Positive To Negative Converter (CB4398E)
This circuit provides a 5 V negative output with a maximum current of 1 A. The circuit is from the...
High Stability 10 V Regulator (CB13016E)
High stability is the main feature of the 10 V regulator circuit shown in the figure and suggested by...