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T-reg: A High-Voltage Regulator for Tube Amps | …

    https://audioxpress.com/article/t-reg-a-high-voltage-regulator-for-tube-amps
    Tube amplifiers can benefit from regulated and stabilized power supplies, especially sensitive preamplifier stages, but also (single-ended) power …

A High-Voltage Delay for Tube Amplifiers

    https://audioxpress.com/files/attachment/2696
    Another issue is that the high voltage initially, when the tubes do not yet draw current, can be quite a bit higher than the voltage under load, putting additional stress on the tubes and possibly the high-voltage capacitors. So we should not take chances with limiting the life of our precious tubes, and switch on the high voltage only after the cathodes have been properly heated up.

Very High Voltage Audio Amplifier | All About Circuits

    https://forum.allaboutcircuits.com/threads/very-high-voltage-audio-amplifier.12612/
    There is an article on the web where a guy made a very high power audio amplifier from radio station transmitter huge vacuum tubes. The MTX Jackhammer 22" sub-woofer is rated at 6000W RMS. It needs 4 strong guys to lift it. There is a funny video on the web where some guys installed one in a car. The windows and the guys' ears didn't last very long.

The Most Popular High-End Tube Amps | Top Tube …

    https://toptubeamplifier.com/the-most-popular-high-end-tube-amps-in-the-market/
    Use 12AX7 and 12AU7 vacuum tube for voltage amplification and phase inversion,use KT88 vacuum tube to do AB1 push-pull power amplification; Mute delay function when turn on the amp(about 30 seconds) ;the choice of Japanese ALPS motor potentiometer

Vacuum Tube Audio Amplifier | Discrete Semiconductor ...

    https://www.allaboutcircuits.com/textbook/experiments/chpt-5/vacuum-tube-audio-amplifier/
    Building the high-voltage power supply: Vacuum tubes require fairly high DC voltage applied between plate and cathode terminals in order to function efficiently. Although it is possible to operate the amplifier circuit described in this experiment on as low as 24 volts DC, the power output will be minuscule and the sound quality poor.

Everything you need to know about 12AX7 Tubes - Tubes …

    https://www.tubesforamps.com/everything-you-need-to-know-about-12ax7-tubes
    Amongst all these tubes, 12AX7 has the highest voltage gain factor (mu) of 100. The high gain factor and the dual-triode configuration allow the tube amp designer to build an amplifier with fewer components. The 12AX7 tube is used in the majority of guitar and audio tube amps today for this reason. 12AX7 Tube by Many Names

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