Data set 01
1999 Philips E-Z
Published operating points and test conditions from this source.
SECTION 1
Triode
Other
Tested anode dissipation
15 kW
Characteristic
Filament current
77 A
Power - Triode ·Triode
TA1220000
Water-cooled high-power Philips transmitting triode for long-wave telegraphy and telephony.
Directly heatedCold cathodeCommon cathodeDissimilar
- Sections
- 1
- Base
- -
- Socket code
- -
- Base pins
- -
- Nominal heater
- 22 V / 77 A
Description
TA1220000 is a water-cooled high-power transmitting triode for long-wave telegraphy and telephony. The supplied Philips datasheet was read for filament data, limiting ratings, characteristic constants, operating classes, cooling requirements, and interelectrode capacitances where published.
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
- 22 V
- Nominal heater current
- 77 A
- 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
1 physical section, each with unique specifications.
Section 1
Triode
X-ray radiationInterelectrode capacitances
- Transconductance
- 0.012 S
- Amplification factor
- 40
- Max plate dissipation
- 12000 W
Water-cooled high-power transmitting triode for long-wave telegraphy and telephony
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.