300B-XLS-EmissionLabs
Triode · DHT · UX-4 · 2010
“Enhanced dissipation 300B.”
High-power directly-heated triode for single-ended amplification
Datasheet ↗SPICE
GAIN FACTOR0
PLATE IMPEDANCE0Ω
TRANSCONDUCTANCE0mA/V
GAIN4%
POWER100%
DRIVE99%
LINEARITY95%
TYPICAL OPERATING POINT
EXECUTIVE SUMMARY
The 300B-XLS-EmissionLabs is a directly-heated triode from Emission Labs, introduced around 2010. It provides a gain factor (μ) of 3.9 with 650Ω plate resistance. Commonly used in power (set) applications. Enhanced dissipation 300B.
APPLICATIONS
SET outputPush-pull outputHeadphone output
Generic triode power (set) stage
• Hi-Fi stereo• Headphone amp• PA/public address
VS 300B
HISTORY
Introduced2010ManufacturerEmission LabsEquivalents300B
ModernSPECIFICATIONS
Heater Voltage5V
Heater Current1.5A
Max Plate Voltage500V
Max Power40W
Sensitivity6 mA/V
Gain Factor3.9
Internal Impedance650Ω
PinoutUX-4
Era2010
RaritySought-after