Flasher CA3130 (CB22004E)

Found in an English documentation from 1977, this flasher or pulser circuit drives an LED. The frequency depends on C2.

Electronic Defense (CB22479E)
Found in an old Popular Electronics, the purpose of this circuit is to give a strong discharge in an...
Rectangular Oscillator LM393 (CB4485E)
The circuit shown is from the 1993 Motorola Linear Interface ICs. The power source may be common...
Exposure time meter (CB8114E)
Indicated by a Popular Electronics of the 90s originally to measure the light determining the exposure...