6SQ7
Triode · IHT · Octal · 1938
“High-mu detector.”
Medium-gain triode for voltage amplification applications
Datasheet ↗SPICE
GAIN FACTOR0
PLATE IMPEDANCE0kΩ
TRANSCONDUCTANCE0mA/V
GAIN70%
POWER1%
DRIVE36%
LINEARITY65%
TYPICAL OPERATING POINT
EXECUTIVE SUMMARY
The 6SQ7 is a indirectly-heated triode from RCA, introduced around 1938. It provides a gain factor (μ) of 70 with 64.0kΩ plate resistance. Commonly used in preamp applications. High-mu detector.
APPLICATIONS
Voltage amplifierHigh-gain preamp
Generic triode preamp stage
• Hi-Fi stereo• Studio/recording
HISTORY
Introduced1938ManufacturerRCAEquivalentsNone
Pre-WarSPECIFICATIONS
Heater Voltage6.3V
Heater Current0.3A
Max Plate Voltage250V
Max Power0.5W
Sensitivity1.1 mA/V
Gain Factor70
Internal Impedance64.0kΩ
PinoutOctal
Era1938
RarityCommon