Data set 01
195X Tunsgram
Published operating points and test conditions from this source.
SECTION 1
Triode
Characteristics
Heater or filament voltage
2 V
Published nominal value
Heater or filament current
220 mA
Published nominal value
Power - Triode ·Triode-Triode
TKDD1
Battery double triode designed for push-pull Class-B power-amplifier service in portable receivers, integrating two directly heated output sections in one envelope.
Directly heatedCold cathodeCommon cathodeDissimilar
- Sections
- 2
- Base
- -
- Socket code
- -
- Base pins
- -
- Nominal heater
- 2 V / 220 mA
Description
Battery double triode designed for push-pull Class-B power-amplifier service in portable receivers.
General specifications
Tube and section characteristics
Properties common to every published source and operating point.
Heater and base
- Base
- -
- Socket code
- -
- Base pins
- -
- Nominal heater voltage
- 2 V
- Nominal heater current
- 220 mA
- Parallel heater voltage
- -
- Parallel heater current
- -
- Series capable
- No
Terminal pinout
Electrical assignments shared by every tube using this base designation.
No verified pinout is recorded for this base designation.
Section ratings
2 physical sections, each with unique specifications.
Section 1
Triode
X-ray radiationInterelectrode capacitances
No fixed ratings are recorded for this section.
Published ratings and characteristics promoted where clearly stated; repeated identical sections compressed where applicable.
Section 2
Triode
X-ray radiationInterelectrode capacitances
No fixed ratings are recorded for this section.
Source-dependent data
Operating conditions by source
Each block preserves the test conditions and published values from one reference. Values from different sources are intentionally kept separate.