53 dB Stereo Preamp for Tape or Phonographs

With the circuit shown in the following schematic diagram, both channels of this stereo preamp is constructed using¬† RCA CA3052 quad AC amplifier.¬† this pre-amplifier circuit is featured with tone control (bass – treble). Make a similar circuit to complete the other channel, since the circuit for left and right channel are similar. To be high-fidelity, total harmonic distortion should […]

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Single Op-Amp 3 Band Equalizer circuit

This is a 3 Band Equalizer circuit. This circuit is made to control the treble, middle and bass range. This circuit uses a single op-amp. With single op-amp we can build equalizer which has three ranges, high frequency, mid frequency, and low frequency. Here is the schematic diagram of the circuit: This circuit has a cut off frequencies of 10kHz, […]

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TDA1524A Voltage Controlled Tone and Volume Control

The device below is built as an active stereo-tone/volume control for TV receivers, car radios and mains-fed equipment. The device below has function for bass and treble control, volume control with built-in contour (can be switched off) and balance. We can control all these function using dc voltages or by single linear potentiometers. This device has 4 features. The features […]

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