Data set 01
1959 Telefunken
Published operating points and test conditions from this source.
Triode
Characteristic
HeaterOrFilamentVoltage
4 V
Application
Loudspeaker output and low-power transmitter
Power - Triode ·Triode
Directly heated loudspeaker output triode for small-room audio service, also usable as a low-power transmitting tube.
Directly heated loudspeaker output triode for small-room audio service; also usable as a low-power transmitting tube.
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
No fixed ratings are recorded for this section.
Published ratings and characteristics promoted from the supplied Telefunken source where explicitly readable.
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
Loudspeaker output and low-power transmitter