Simple MD Catridge Preamplifier

Posted on Feb 6, 2014

Phonographs are gradually becoming a rarity. Most of them have had to yield to more advanced systems, such as CD players and recorders or (portable) MiniDisc player/recorders. This trend is recognized by manufacturers of audio installations, which means that the traditional phono input is missing on increasingly more systems. Hi- enthusiasts wh

Simple MD Catridge Preamplifier
Click here to download the full size of the above Circuit.

o want make digital versions of their existing collections of phonograph records on a CD or MD, discover that it is no longer possible to connect a phonograph to the system. However, with a limited amount of circuitry, it is possible to adapt the line input of a modern amplifier or recorder so that it can handle the low-level signals generated by the magnetodynamic cartridge of a phonograph. Of course, the circuit has to provide the well-known RIAA correction that must be used with these cartridges. The preamplifier shown here performs the job using only one opamp, four resistors and four capacitors. For a stereo version, you will naturally need two of everything. Any stabilized power supply that can deliver ±15V can be used as a power source.

Leave Comment

characters left:

Related Circuits

  • New Circuits



    Popular Circuits

    mc2833 fm transmitter circuit design electronic project
    Light Bulb Pirani Gage Project
    Simple Burglar Alarm circuit
    Help in identifying the schematic symbol
    Four channel RF remote control
    8051 Development System Circuit Board 3
    555 capacitance tester circuit diagram