Light Controlled Blinker Indicator (CB6745E)

Suggested by General Electric in a 1965 publication this circuit uses a light bulb. Can be changed to use LED and capacitor can be 22 uF.

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Analog Multiplier (CB7930E)
Found in a 1968 EEE, this circuit accepts frequencies from 1 to 1000 Hz and control voltages from 0.1 to...
1 W LM386 Amplifier (CB17022E)
This circuit has appeared several times on this site in different applications. This is from 1997...
Compator with hysteresis (CB5079E)
This setting appears other times in this section from other sources. This is from an 80's American...