Ampera
ECC808
Dual Triode · IHT · 9-pin Noval · 1960
“Studio-grade low noise.”
High-gain dual triode — the standard for guitar and hi-fi preamps
Datasheet ↗SPICE
GAIN FACTOR0
PLATE IMPEDANCE0kΩ
TRANSCONDUCTANCE0mA/V
Cgk0pF
Cgp0pF
Cpk0pF
GAIN80%
POWER1%
DRIVE47%
LINEARITY60%
TYPICAL OPERATING POINT
EXECUTIVE SUMMARY
The ECC808 is a dual indirectly-heated triode from Telefunken, introduced around 1960. It provides a gain factor (μ) of 80 with 53.0kΩ plate resistance. Commonly used in preamp applications. Studio-grade low noise.
APPLICATIONS
Voltage amplifierHigh-gain preampPhase splitter
Generic triode preamp stage
• Hi-Fi stereo• Studio/recording
HISTORY
Introduced1960ManufacturerTelefunkenEquivalentsNone
Late ProductionSPECIFICATIONS
Heater Voltage6.3V
Heater Current0.2A
Max Plate Voltage200V
Max Power0.5W
Sensitivity1.5 mA/V
Gain Factor80
Internal Impedance53.0kΩ
Pinout9-pin Noval
Era1960
RarityRare
Input Capacitance1.6pF
Miller Capacitance1.7pF
Output Capacitance0.46pF