Ampera
ECC88
Dual Triode · IHT · 9-pin Noval · 1958
“Frame-grid classic.”
Medium-gain triode for driver and line stage applications
Datasheet ↗SPICE
GAIN FACTOR0
PLATE IMPEDANCE0kΩ
TRANSCONDUCTANCE0mA/V
Cgk0pF
Cgp0pF
Cpk0pF
GAIN33%
POWER5%
DRIVE97%
LINEARITY84%
TYPICAL OPERATING POINT
EXECUTIVE SUMMARY
The ECC88 is a dual indirectly-heated triode from Amperex·Philips, introduced around 1958. It provides a gain factor (μ) of 33 with 2650Ω plate resistance. Commonly used in preamp applications. Frame-grid classic.
APPLICATIONS
Voltage amplifierPhase splitter
Audio Research SP-6 preampJadis JP80
• Hi-Fi stereo• Headphone amp
VS 6DJ8
HISTORY
Introduced1958ManufacturerAmperex·PhilipsEquivalents6DJ8
Golden AgeSPECIFICATIONS
Heater Voltage6.3V
Heater Current0.365A
Max Plate Voltage130V
Max Power1.8W
Sensitivity12.5 mA/V
Gain Factor33
Internal Impedance2.6kΩ
Pinout9-pin Noval
Era1958
RarityCommon
Input Capacitance3.3pF
Miller Capacitance1.4pF
Output Capacitance1.3pF