←30A-EmissionLabs
30A-EmissionLabs
Triode · DHT · UX-4 · 2005
“EML 2A3 equivalent.”
High-power directly-heated triode for single-ended amplification
Datasheet ↗SPICE
GAIN FACTOR0
PLATE IMPEDANCE0kΩ
TRANSCONDUCTANCE0mA/V
GAIN4%
POWER28%
DRIVE99%
LINEARITY95%
TYPICAL OPERATING POINT
EXECUTIVE SUMMARY
The 30A-EmissionLabs is a directly-heated triode from Emission Labs, introduced around 2005. It provides a gain factor (μ) of 4 with 1330Ω plate resistance. Commonly used in power (set) applications. EML 2A3 equivalent.
APPLICATIONS
SET outputPush-pull outputHeadphone output
Generic triode power (set) stage
• Hi-Fi stereo• Headphone amp
HISTORY
Introduced2005ManufacturerEmission LabsEquivalents2A3 class
ModernSPECIFICATIONS
Heater Voltage5V
Heater Current1.5A
Max Plate Voltage450V
Max Power11W
Sensitivity3 mA/V
Gain Factor4
Internal Impedance1.3kΩ
PinoutUX-4
Era2005
RaritySought-after