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

    Simple Metal Detector DIY
    Line Powered Phone Messager (PIC16C819)
    Circuit monitors blinking phone lights
    learning Arduino programming
    Make This 1KVA (1000 watts) Pure Sine Wave Inverter Circuit
    DTMF Receiver IC MT8870 Tester
    Nite Rider Lights
    microcontroller Arduino 230v Light bulb dimming
    Alarm Circuit Using Keypad
    FM Stereo Transmitter circuit diagram Using BH1417



    Top