Data set 01
1959 Telefunken
Published operating points and test conditions from this source.
Triode
Characteristic
HeaterOrFilamentVoltage
4 V
Application
Class-B battery-receiver output
DualTriode
Power - Triode ·Triode-Triode
Directly heated dual power triode designed for Class-B output stages in battery receivers, combining two output sections for efficient push-pull audio amplification.
Directly heated dual power triode intended as a Class B output tube for battery receivers.
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, each with unique specifications.
Section 1
No fixed ratings are recorded for this section.
Published ratings and characteristics promoted from the supplied Telefunken source where explicitly readable.
Section 2
No fixed ratings are recorded for this section.
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.
HeaterOrFilamentVoltage
4 V
Application
Class-B battery-receiver output
DualTriode