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A simple circuit using FETs for fading audio signals in and out exponentially in time | IEEE Journals & Magazine | IEEE Xplore

A simple circuit using FETs for fading audio signals in and out exponentially in time


Abstract:

This letter describes a simple fading circuit for low frequencies, using the FET as a control element. The logarithm of the output voltage is a linear function of time. D...Show More

Abstract:

This letter describes a simple fading circuit for low frequencies, using the FET as a control element. The logarithm of the output voltage is a linear function of time. Distortion is considerably reduced through a linearization circuit. The fading process can be interrupted at any moment and the rate of attenuation for each signal is maintained without change for several minutes.
Published in: Proceedings of the IEEE ( Volume: 57, Issue: 2, February 1969)
Page(s): 222 - 224
Date of Publication: 28 February 1969

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