FET Follower (CB6132E)

This 1967 Electronics World circuit is suitable for frequencies up to 1 MHz. The setting applies to virtually any junction FET.

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1 Hz Oscillator with Quadrature Output (CB4841E)
This circuit is from an operating manual from the 1990s. The circuit generates sinusoidal and cosine...
Current Monitor (CB15826E)
This circuit, suggested by National Semiconductor, provides an output voltage proportional to the...
Simple siren (CB21663E)
This transistorized siren was found in Popular Electronics from April 1967. The signal must be...