Quick Adder (CB20155E)

This is a factory circuit from an 80's manual. The circuit can be implemented with modern operationals and the power supply must be symmetrical.

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2.2 W amplifier with BC337 and BC327 (CB14619E)
This small audio amplifier circuit in complementary symmetry was found in the 1974 Mullard...
Complementary emitter follower (CB7979E)
This complementary or bilateral emitter follower was found in American documentation from the 90s....
DC Amplifier (CB22244E)
This circuit is a sample of a DC amplifier used in the 50's. The transistor is germanium and very...