6CY7
Dual Triode · IHT · 9-pin Noval · 1958
“Dissimilar dual miniature. TV-era gem.”
Medium-gain triode for driver and line stage applications
GAIN FACTOR0
PLATE IMPEDANCE0Ω
TRANSCONDUCTANCE0mA/V
GAIN50%
POWER19%
DRIVE99%
LINEARITY75%
EXECUTIVE SUMMARY
The 6CY7 is a dual indirectly-heated triode from GE·Sylvania, introduced around 1958. It provides a gain factor (μ) of 50 with 750Ω plate resistance. Commonly used in driver + power applications. Dissimilar dual miniature. TV-era gem.
APPLICATIONS
Push-pull outputHeadphone outputPhase splitter
Generic triode driver + power stage
• Hi-Fi stereo• Headphone amp
HISTORY
Introduced1958ManufacturerGE·SylvaniaEquivalentsNone standard
Golden AgeSPECIFICATIONS
Heater Voltage6.3V
Heater Current0.9A
Max Plate Voltage300V
Max Power7.5W
Sensitivity5 mA/V
Gain Factor50
Internal Impedance750Ω
Pinout9-pin Noval
Era1958
RarityCommon
SPICE model not yet available. Loadline calculator requires calibrated Koren parameters.