Ladder Generator (CB9104E)

Found in General Electric documentation from the 1970s, this circuit generates a staircase signal.

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Neon Flasher (CB20941E)
This simple expandable circuit was obtained from a Popular Electronics from the 80's. The supply...
JFET Crystal oscillator III (CB19850E)
The frequency of the LC resonant circuit must be the same as that of the crystal and the JFET...
Pressure or Beat Sensor (CB11516E)
This circuit was obtained in a Popular Electronics of 1991. The magazine no longer exists, but the...