Ampera
UCL82-T
Triode · IHT · 9-pin Noval · 1955
“Triode section.”
Medium-gain triode for voltage amplification applications
GAIN FACTOR0
PLATE IMPEDANCE0kΩ
TRANSCONDUCTANCE0mA/V
Cgk0pF
Cgp0pF
Cpk0pF
GAIN70%
POWER3%
DRIVE68%
LINEARITY65%
EXECUTIVE SUMMARY
The UCL82-T is a indirectly-heated triode from Philips·Mullard, introduced around 1955. It provides a gain factor (μ) of 70 with 32.0kΩ plate resistance. Commonly used in preamp applications. Triode section.
APPLICATIONS
Voltage amplifierHigh-gain preamp
Generic triode preamp stage
• Hi-Fi stereo• Headphone amp• Studio/recording
HISTORY
Introduced1955ManufacturerPhilips·MullardEquivalents50BM8
Golden AgeSPECIFICATIONS
Heater Voltage50V
Heater Current0.1A
Max Plate Voltage300V
Max Power1.2W
Sensitivity2.2 mA/V
Gain Factor70
Internal Impedance32.0kΩ
Pinout9-pin Noval
Era1955
RarityCommon
Input Capacitance2.5pF
Miller Capacitance1.5pF
Output Capacitance0.5pF
SPICE model not yet available. Loadline calculator requires calibrated Koren parameters.