Data set 01
1959 Telefunken
Published operating points and test conditions from this source.
Triode
Characteristic
Heater Voltage
6.3 V
Heater Current
650 mA
MaximumOperatingFrequency
1000 MHz
GroundedGrid
Power - Triode Single (under 10W) ·Triode
Power-capable triode intended for amplifier or driver service. Manufacturer data support moderate-current operation and useful dissipation, but do not justify assignment to the large transmitting or specialized regulator families.
Special-quality UHF power triode for grounded-grid amplifiers and oscillators to about 1000 MHz; equivalent to 8556.
Small-button Noval 9-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
Published Telefunken ratings and characteristics promoted from the supplied source.
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
Heater Current
650 mA
MaximumOperatingFrequency
1000 MHz
GroundedGrid
Data set 02
Published operating points and test conditions from this source.
Anode-grid capacitance
0.09 pF
Grid-cathode-heater capacitance
7.5 pF