12AX7B Shuguang Vacuum Tube Replaces ECC83 7025 6N4 for Vacuum Tube Preamplifier HIFI Preamplifier DIY Amplifier Audio

12AX7B Shuguang Vacuum Tube  Replaces ECC83 7025 6N4 for Vacuum Tube Preamplifier HIFI Preamplifier Diy Amplifier Audio

Product introduction:
1: The 12AX7B can replace the ECC83 7025 6N4, a high u low noise dual triode small nine pin transistor. It can amplify the voltage in the audio amplifier circuit and drive the push-pull amplifier by inverting.

2: The 12AX7A 7025 has the same functions and electrical parameters as the 12AX7 ECC83. It is an improved version of the 12AX7A 7025 with lower noise. It is suitable for the first stage amplification in high gain amplifiers.