274B
Rectifier · DHT · Octal · 1935
“Designed for the WE 300B amp. Premier WE rectifier.”
Full-wave rectifier for vacuum tube power supply designs
GAIN0%
POWER0%
DRIVE50%
LINEARITY75%
EXECUTIVE SUMMARY
The 274B is a directly-heated rectifier from Western Electric, introduced around 1935. Commonly used in rectifier applications. Designed for the WE 300B amp. Premier WE rectifier.
APPLICATIONS
Power supply rectification
Generic rectifier rectifier stage
VS 5U4G
HISTORY
Introduced1935ManufacturerWestern ElectricEquivalents5U4G, WE274A
Pre-WarSPECIFICATIONS
Heater Voltage5V
Heater Current2A
Max Plate Voltage550V
Max Power—
Sensitivity—
Gain Factor—
Internal Impedance—
PinoutOctal
Era1935
RarityLegendary
SPICE model not yet available. Loadline calculator requires calibrated Koren parameters.