Power - Triode ·Triode
Rugged twin power triode designed for series-regulator and pass-tube service. Its identical high-current sections emphasize low plate resistance and roughly 30 W dissipation each for demanding regulated power supplies and power-control equipment.
Rugged twin power triode for series-regulator/pass-tube service, with high transconductance at low plate voltage.
International Octal
General specifications
Properties common to every published source and operating point.
Electrical assignments shared by every tube using this base designation.
No verified pinout is recorded for this base designation.
2 physical sections, with 1 unique section. The remaining sections have identical specifications.
Section 1
Representative section for identical dual sections.
Source-dependent data
Each block preserves the test conditions and published values from one reference. Values from different sources are intentionally kept separate.
Data set 01
Published operating points and test conditions from this source.
Heater voltage
6.3 V
Nominal
Heater current
5 A
Nominal
Plate current per section maximum
400 mA
PerSection
Maximum altitude at full ratings
10000 ft
Data set 02
Published operating points and test conditions from this source.
Heater voltage
6.3 V
Heater current
5 A
Minimum cathode heating time
30 s
Maximum heater-cathode voltage
-300 to 300 V
Grid-cathode capacitance
16.7 pF
Grid-plate capacitance
21.8 pF
Cathode-plate capacitance
3.8 pF
Heater-cathode capacitance
15 pF
Plate-to-plate between sections capacitance
0.6 pF