Glossary: Vacuum Tube | Sweetwater.com

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Vacuum Tube: An electron tube where virtually all the air has been removed (creating a vacuum), thus permitting electrons to move freely, with low interaction with any remaining air molecules. Early tubes had two electrodes (cathode and anode, or plate) and were known as diodes. Later (1907) a grid (or control grid) was added, creating what is known as a triode. The grid provided real-time control of output levels, where a small voltage applied could regulate the current passing from the cathode to the plate, creating the first practical amplifier.

Vacuum Tube	Vako Orchestron	Valve
Vaporware	Variable Pattern Mic	Variable State Filter
Variac	Varispeed	Varitone
VAST	VBR	Voltage-controlled Amplifier (VCA)
VCA Group	VCF	VCO
VCR	VCXO	Velocity
Velocity Compression	Velocity Curve	Velocity Split
Veneer	Verse	VESA
VESA	VFO	VGA
Very High Frequency	Vibrato	Vibratone
Vibrato Tailpiece	Vibrola	Video Sync
Violin Bass	Virtual Analog Synthesizer	Virtual Dolby Digital
Virtual Dolby Surround	Virtual Instrument	VirtualMemory
Virtual Slave Reel	Virtual Track	VISE
VITC	Vivace	Virtual Network Computing
VOC	Vocal Booth	Vocoder
Voice	Voice-Stealing	Voice Coil
Voice Leading	Voice Over	Voicing
Volatile Memory	Volt	Volt-Ampere
Voltage	Voltage Clamping	Voltage-controlled Filter (VCF)
Voltage Depression	Voltage Regulator	Voltage Sag
Voltage Spike	Volume	Volute
Vox Treble Booster	Vox Ultrasonic	Virtual Studio Technology
VST2	VST Instrument	VTR