12SQ7
Triode · IHT · Octal · 1938
“12V version of 6SQ7.”
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 12SQ7 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. 12V version of 6SQ7.
APPLICATIONS
Voltage amplifierHigh-gain preamp
Generic triode preamp stage
• Hi-Fi stereo• Studio/recording
VS 6SQ7
HISTORY
Introduced1938ManufacturerRCAEquivalents6SQ7
Pre-WarSPECIFICATIONS
Heater Voltage12.6V
Heater Current0.15A
Max Plate Voltage250V
Max Power0.5W
Sensitivity1.1 mA/V
Gain Factor70
Internal Impedance64.0kΩ
PinoutOctal
Era1938
RarityCommon