7025 ECC803S 12AX7A Tube RIAA Phono Preamplifier Schematic


Posted on Feb 6, 2014

This two-stage audio preamplifier is intended for use with high-fidelity magnetic phonograph pickups. The overall gain of the circuit is about 150. The circuit is from the RCA tube receiving manual and meant for use with the famous RCA 7025 twin triode. 12AX7A and ECC803S twin triodes can also be used with this circuit. The phono preamp uses a pas


7025 ECC803S 12AX7A Tube RIAA Phono Preamplifier Schematic
Click here to download the full size of the above Circuit.

sive RIAA equalization filter.




Leave Comment

characters left:

Related Circuits

  • New Circuits

    .

     


    Popular Circuits

    Monostable photocell circuit
    Low-cost-humidity-sensor
    Turntable Rumble Filter
    Continuity Tester
    Stereo Preamp With Tone Control Circuit
    Atv Video Sampler Circuit Circuit
    quick question about dimmers
    R/C-Plane altitude recorder
    Phase Delay Network for 3D Audio Enhancement
    RFID Readers for the HDX Protocol



    Top