Tone Oscillator (CB22066E)

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

Micro AM Radio (E/P) (MIN020E)
This micro AM radio will tune strong stations in the frequency range between 530 and 1,600 kHz....
Two-Tone Buzzer (CB24121E)
This unijunction buzzer configuration appears in this section from many publications and sources. The...
Push Pull stage OC19 (CB18855E)
This counterphase output step was obtained in a Japanese magazine of 1957, a time when the...