Contents
What causes tube distortion?
What is Distortion and Overdrive. An audio signal is distorted when there is a change in signal wave shape from input to output. Since tube amps’ transfer curves are nonlinear they will always cause some distortion even when played “clean.” But this low level distortion adds texture and warmth and fattens up the tone.
How does a vacuum tube computer work?
Vacuum tubes contain electrodes for controlling electron flow and were used in early computers as a switch or an amplifier. By using vacuum tubes instead of a mechanical relays computers could move away from mechanical switching and speed up the switching on and off the flow of electrons.
How does a rectifier tube work?
The rectifier tube is a one-way valve that combined with the power transformer acts as an electron pump to convert 325 volts RMS AC into 360 volts DC. This high voltage AC from the transformer is often called HT (high tension) voltage.
Why do tubes sound better than transistors?
Tubes, like analog recordings, have a more full-bodied sound than transistor gear. There’s a “roundness” to tube sound that solid-state gear never equals. Tubes are less forgiving about mismatches, so to get the best out of a tube amp it must be used with just the right speaker.
Why do vacuum tubes sound better?
Tube amplifiers sound better because of the euphonic distortions they add to the music, as well as plenty of other reasons I’ll cover below. The ways that tubes distort when pushed to the edge are much more musical than the artificial sounds that come from transistor amplifiers when overdriven.
What does a bad rectifier tube sound like?
Crackling, squeals and feedback, excessive noise and muddiness or low output are all evidence of tube problems. Power tubes. The two main symptoms of a power tube problem are a blown fuse or a tube that begins to glow cherry red. Either are typically indicative of a power tube failure.