The 12AX7B can replace the ECC83 7025 6N4 . The high-output low-noise dual-triode small nine-pin tube is used for voltage amplification in audio amplification circuits, as well as for inverting drive and push-pull amplification.
The functions and electrical parameters of 12AX7A, 7025 and 12AX7, ECC83 are exactly the same. It is an improved version with lower noise, and are suitable for use as the first stage amplifiers in high-gain amplifiers.
Used for HIFI amplifier, preamplifier,amplifier audio, vacuum tube preamplifier, Replaces ECC83,12AX7,12AX7A,7025, 6N4.