Heater NotesMin: 5.7V, Max: 6.9V. May be DC operated for best hum performance.
Absolute Maximum Ratings
Plate Voltage250 V
Plate Dissipation13 W
Grid 1 Voltage-150 V
Cathode Current130 mA
H-C Voltage300 V
Audio Performance
Power Output10 W
Key Features
Indirectly-heated unipotential cathode
High transconductance
Low plate resistance
High plate current capacity
Typical Operation
Mode
Plate V
Gm (µmhos)
Rp (Ω)
µ
Plate mA
Class A Push-Pull (Two Triodes)
250 V
5500
280
—
80 mA
Application Notes
Originally designed as a series pass tube in regulated power supplies. Excellent choice for OTL (Output Transformerless) and high-performance audio circuits.
