Power - Triode ·Triode
Directly heated Western Electric power triode intended for audio and radio-frequency transmitting applications. Its 100 W plate dissipation and 1.25 kV plate capability support substantial power stages, with full RF ratings into the tens-of-megahertz range.
RF/AF power amplifier, oscillator and modulator triode. The datasheet publishes maximum ratings, typical operating conditions and electrical characteristics.
Jumbo 4-contact
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.
1 physical section, each with unique specifications.
Section 1
Maximum ratings and characteristic constants promoted where reliably published in the approved sheet.
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.
Plate-grid capacitance
9 pF
Published direct interelectrode capacitance
Plate-filament capacitance
4 pF
Published direct interelectrode capacitance
Grid-filament capacitance
6 pF
Published direct interelectrode capacitance
Data set 02
Published operating points and test conditions from this source.
Filament voltage
7.5 V
Filament current
3 A
Maximum direct plate voltage
1250 V
Maximum plate dissipation
100 W
Data set 03
Published operating points and test conditions from this source.
Maximum full-rating frequency
20 MHz
Data set 04
Published operating points and test conditions from this source.
Plate To Grid Capacitance
9 pF
Grid To Filament Capacitance
6 pF
Plate To Filament Capacitance
4 pF
MaximumDirectGridCurrent
50 mA
MaximumFrequencyAtFullRatings
30 MHz