Power - Triode (over 1000V 100W) ·Triode
Western Electric directly heated forced-air-cooled transmitting triode for high-power RF service. It combines an 18 kV plate capability with approximately 5 kW plate dissipation, providing a forced-air-cooled alternative for large transmitter stages.
The Western Electric 343AA is a directly heated forced-air-cooled high-power transmitting triode for RF service.
Giant 5-contact base
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
Promoted fields populated from explicitly published ratings/characteristics; service-specific data retained as parameters.
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.
Maximum Frequency
4 MHz
Typical Maximum Power Output
3500 W
ClassB; RF
Typical Plate Voltage
10000 V
Typical Plate Current
500 mA
Data set 02
Published operating points and test conditions from this source.
FHamMeEnt Voltage o
21.5 V
FHamMeEnt Voltage o 21.5 volts
Filament Current ac [1]
21.5 V
Filament Current ac 21.5 volts 57.5 amperes
Filament Current ac [2]
57.5 V
Filament Current ac 21.5 volts 57.5 amperes
Maximum Anode Temperature —
120 mA
Maximum Anode Temperature — 120 °C
Direct Plate Current [1]
2 A
Direct Plate Current 2 1.5 amps
Direct Plate Current [2]
1.5 A
Direct Plate Current 2 1.5 amps
Grid DissiPation .........c..ocooeviiiiveiiiiei e [1]
200 W
Grid DissiPation .........c..ocooeviiiiveiiiiei e ........................................ 200 200 watts
Grid DissiPation .........c..ocooeviiiiveiiiiei e [2]
200 W
Grid DissiPation .........c..ocooeviiiiveiiiiei e ........................................ 200 200 watts
R-F Grid Current ......ccoooooiiiiiiiies e [1]
20 A
R-F Grid Current ......ccoooooiiiiiiiies e ........................................ 20 20 amps
R-F Grid Current ......ccoooooiiiiiiiies e [2]
20 A
R-F Grid Current ......ccoooooiiiiiiiies e ........................................ 20 20 amps
Frequency ... e e [1]
4 MHz
Frequency ... e e ........................................ 4 4 Mc
Frequency ... e e [2]
4 MHz
Frequency ... e e ........................................ 4 4 Mc
Direct Plate Current [1]
0.4
Direct Plate Current .. 0.40 0.30 amp
Direct Plate Current [2]
0.3
Direct Plate Current .. 0.40 0.30 amp
Plate Dissipation ............coocciiviiieii [1]
5000 W
Plate Dissipation ............coocciiviiieii. 5000 3000 watts
Plate Dissipation ............coocciiviiieii [2]
3000 W
Plate Dissipation ............coocciiviiieii. 5000 3000 watts
Load Impedance ..........ccocooiviiiniiiiii [1]
12000 ohm
Load Impedance ..........ccocooiviiiniiiiii 12,000 20,000 ohms
Load Impedance ..........ccocooiviiiniiiiii [2]
20000 ohm
Load Impedance ..........ccocooiviiiniiiiii 12,000 20,000 ohms
Direct Plate Voltage [1]
12500 V
Direct Plate Voltage 12,500 10,000 volts
Direct Plate Voltage [2]
10000 V
Direct Plate Voltage 12,500 10,000 volts
Load Resistance (plate-to-plate) [1]
8600 ohm
Load Resistance (plate-to-plate) ... 8600 7600 ohms
Load Resistance (plate-to-plate) [2]
7600 ohm
Load Resistance (plate-to-plate) ... 8600 7600 ohms
Load Resistance (per tube) [1]
2150 ohm
Load Resistance (per tube) 2150 1900 ohms
Load Resistance (per tube) [2]
1900 ohm
Load Resistance (per tube) 2150 1900 ohms
Recommended Power for Driving Stage [1]
750 W
Recommended Power for Driving Stage ... 750 750 watts
Recommended Power for Driving Stage [2]
750 W
Recommended Power for Driving Stage ... 750 750 watts
Direct Plate Voltage ... ... i e [1]
15000 V
Direct Plate Voltage ... ... i e 15,000 12,500 volts
Direct Plate Voltage ... ... i e [2]
12500 V
Direct Plate Voltage ... ... i e 15,000 12,500 volts
Direct Plate Current for Carrier Conditions [1]
0.7
Direct Plate Current for Carrier Conditions ... 0.70 0.70 amp
Direct Plate Current for Carrier Conditions [2]
0.7
Direct Plate Current for Carrier Conditions ... 0.70 0.70 amp
Direct Plate Voltage ............................. e e [1]
18000 V
Direct Plate Voltage ............................. e e 18,000 15,000 12,500 volts
Direct Plate Voltage ............................. e e [2]
15000 V
Direct Plate Voltage ............................. e e 18,000 15,000 12,500 volts
Direct Plate Voltage ............................. e e [3]
12500 V
Direct Plate Voltage ............................. e e 18,000 15,000 12,500 volts
Direct Plate Current [1]
1.25 A
Direct Plate Current ... . 1.25 1.00 1.25 amps
Direct Plate Current [2]
1 A
Direct Plate Current ... . 1.25 1.00 1.25 amps
Direct Plate Current [3]
1.25 A
Direct Plate Current ... . 1.25 1.00 1.25 amps
Nominal Power Output [1]
15000 W
Nominal Power Output ... 15,000 10,000 10,000 watts
Nominal Power Output [2]
10000 W
Nominal Power Output ... 15,000 10,000 10,000 watts
Nominal Power Output [3]
10000 W
Nominal Power Output ... 15,000 10,000 10,000 watts
Plate DisSIPAtION ...ooocooiiiiiiiiiie et [1]
10000 W
Plate DisSIPAtION ...ooocooiiiiiiiiiie et 10,000 5000 5600 watts
Plate DisSIPAtION ...ooocooiiiiiiiiiie et [2]
5000 W
Plate DisSIPAtION ...ooocooiiiiiiiiiie et 10,000 5000 5600 watts
Plate DisSIPAtION ...ooocooiiiiiiiiiie et [3]
5600 W
Plate DisSIPAtION ...ooocooiiiiiiiiiie et 10,000 5000 5600 watts
Direct Plate Voltage [1]
7500 V
Direct Plate Voltage 7500 5000 volts
Direct Plate Voltage [2]
5000 V
Direct Plate Voltage 7500 5000 volts
Direct Plate Current [1]
1
Direct Plate Current 1.0 1.0 amp
Direct Plate Current [2]
1
Direct Plate Current 1.0 1.0 amp
Direct Grid Current [1]
150 mA
Direct Grid Current 150 150 mA
Direct Grid Current [2]
150 mA
Direct Grid Current 150 150 mA
Nominal Carrier Power Output [1]
5000 W
Nominal Carrier Power Output 5000 3300 watts
Nominal Carrier Power Output [2]
3300 W
Nominal Carrier Power Output 5000 3300 watts
less. ‘The maximum plate voltage for the upper frequency
400 mA
less. ‘The maximum plate voltage for the upper frequency 400 to GO0 cubic feet per minute depending upon the anode
limit of [1]
16 V
limit of 16 megacycles is 5,000 volts. The maximum plate dissipation and ambicnt temperature. An air pressure interlock
limit of [2]
5000 V
limit of 16 megacycles is 5,000 volts. The maximum plate dissipation and ambicnt temperature. An air pressure interlock
voltage for frequencies between [1]
4 MHz
voltage for frequencies between 4 and 16 megacycles should is required for protecting the tube if the air flow is insufficient.
voltage for frequencies between [2]
16 MHz
voltage for frequencies between 4 and 16 megacycles should is required for protecting the tube if the air flow is insufficient.