Tone Oscillator (CB22066E)

Found in old documentation, this oscillator with the LM380 produces an audio tone in a speaker. Frequency is set in VR1.

TTL Data Transmission (CB16024E)
The circuit shown in the figure is suggested by Texas Instruments and allows data transmission on TTL devices...
Vibrato (CB3823E)
We find this vibrato configuration with transistors in a 1987 documentation. The components are still...
Quadrature Outputs Sinusoidal Oscillator (CB13232E)
This circuit, from a documentation from the 1970s, produces two sinusoidal signals given by C2 and...