Ampera
7236
Dual Triode · IHT · Octal · 1957
“Computer-rated 5998. Clean, open sound.”
High-power directly-heated triode for single-ended amplification
GAIN FACTOR0
PLATE IMPEDANCE0Ω
TRANSCONDUCTANCE0mA/V
GAIN5%
POWER38%
DRIVE100%
LINEARITY95%
EXECUTIVE SUMMARY
The 7236 is a dual indirectly-heated triode from Tung-Sol·Sylvania, introduced around 1957. It provides a gain factor (μ) of 4.8 with 350Ω plate resistance. Commonly used in power/output applications. Computer-rated 5998. Clean, open sound.
APPLICATIONS
SET outputPush-pull outputHeadphone outputPhase splitter
Generic triode power/output stage
• Hi-Fi stereo• Headphone amp
HISTORY
Introduced1957ManufacturerTung-Sol·SylvaniaEquivalents5998A
Golden AgeSPECIFICATIONS
Heater Voltage6.3V
Heater Current2.5A
Max Plate Voltage300V
Max Power15W
Sensitivity12.5 mA/V
Gain Factor4.8
Internal Impedance350Ω
PinoutOctal
Era1957
RaritySought-after
SPICE model not yet available. Loadline calculator requires calibrated Koren parameters.