Car alarm (CB23933E)

We found this circuit in Radio Electronics from October 1968. The circuit drives headlight bulbs and can be adapted for current applications.

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Digital Watch (CB17342E)
This circuit is from a 1979 publication, using displays of 7 segments of common cathode. The...
LT1037 Sinusoidal Oscillator (CB4396E)
The 1 kHz Wien bridge oscillator presented was found in the 1993 Linear Technology Applications. The...
Non-inverting integrators (CB6842E)
Obtained from an Electronic Engineering of the 90s, these circuits can be applied to almost any...