Tone Oscillator (CB22066E)

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

Vox (CB24516E)
This audio-driven relay was published in the July 1977 issue of Radio Electronics magazine. The...
Incandescent flasher (CB12989E)
This circuit can be used for signaling a panel with a common incandescent lamp. The lamp will...
455 kHz Oscillator (CB3873E)
This crystal oscillator is indicated for the calibration of IF steps of common radio receivers. The...