Ladder Generator (CB9105E)

Found in Linear Technology documentation from the 1980s, this generator uses integrated circuits from that time.

Alternating Signals Operational Amplifier (CB19324E)
This circuit was obtained in an old European documentation. The integrated circuit used is...
Guitar Fuzz (CB26213E)
This common circuit using operational amplifiers was found in the 1993 issue of Radio Electronics Special...
Sinusoidal Oscillator 555 (CB12509E)
In the figure we have a simple way to obtain (almost) sinusoidal signals from an integrated...