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1500T

Forced-air-cooled medium-mu high-vacuum transmitting triode for high-power RF amplification, oscillator, and modulator service in professional transmitting equipment.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: -
Socket code: SPECIAL4
Base pins: 4
Nominal heater: 7.5 V / 24 A

Description

1500T — Medium-Mu Power Triode

The 1500T is a medium-mu, high-vacuum transmitting triode designed for use as an amplifier, oscillator, or modulator. It features a maximum plate dissipation rating of 1500 watts and is capable of operating at plate voltages up to 8000 volts at frequencies up to 40 MHz. Cooling of the anode is achieved primarily through radiation from the plate, which operates at a visibly red-orange temperature at maximum dissipation, supplemented by forced air circulation around the envelope and seals.

Construction and Mechanical Specifications

The 1500T is constructed with a thoriated tungsten filament and is housed in a glass envelope. It is designed for vertical mounting, either base up or base down. The physical dimensions and mechanical limits of the tube are as follows:

Maximum Overall Length: 17.0 inches (431.80 mm)
Maximum Diameter: 7.125 inches (180.98 mm)
Net Weight: 3.5 pounds (36 oz / 1020 g)
Shipping Weight (Average): 8.5 pounds
Base: Special 4-pin, No. 5005B
Basing Configuration: RMA type 4BD
Recommended Socket: Johnson 124-214 or equivalent
Recommended Heat-Dissipating Connectors: HR-8 for the plate terminal; HR-8 or HR-9 for the grid terminal
Maximum Operating Temperature (Plate and Base Seals): 225°C

To prevent damage from severe vibration and shock, flexible connecting straps must be used between the grid and plate terminals and their external circuits.

Cooling Requirements

The envelope and seals of the 1500T require artificial cooling during operation. Envelope cooling can be accomplished using an ordinary 8-inch or 10-inch fan located approximately one foot from the tube, directing air at the middle of the envelope to ensure uniform cooling.

The grid, plate, and filament seals require dedicated forced-air cooling:

Grid and Plate Seals: Each seal requires a minimum air flow of 2 cubic feet per minute. The air for the grid seal is typically fed through the grid connector.
Filament Seals and Base: Base cooling requires an air flow of 2.5 cubic feet per minute directed up through the bottom of the base toward the filament press. The base features a 1-inch diameter hole for this purpose.
Static Pressure Requirements: If a socket with a 1-inch matching hole and manifold is used, a static pressure of less than 0.1 inch of water is required. If a socket with a 1/4-inch pipe inlet is used, a static pressure of 5.5 inches of water is required to maintain the necessary 2.5 cubic feet per minute volume.

Suitable electrical interlocks must be incorporated into the system to automatically remove plate and filament voltages if the cooling air supply is interrupted.

Electrical Characteristics and Filament Ratings

The 1500T features a thoriated tungsten filament requiring a highly stable voltage supply. The electrical characteristics of the filament and the tube's internal structure are detailed below:

Parameter	Minimum	Nominal	Maximum
Filament Voltage	7.125 V	7.5 V	7.875 V
Filament Current (at 7.5 V)	22.0 A	24.0 A	25.0 A
Amplification Factor (Average)	—	24	—
Transconductance ( $I_b = 1.25\text{ A}, E_b = 6000\text{ V}, E_c = -155\text{ V}$ )	—	10,000 µmhos	—

Direct Interelectrode Capacitances (Grounded Filament)

Grid-Plate ( $C_{gp}$ ): 7.2 pF (Range: 5.5 to 9.0 pF)
Grid-Filament ( $C_{gf}$ ): 9.9 pF (Range: 7.5 to 12.5 pF)
Plate-Filament ( $C_{pf}$ ): 1.5 pF (Maximum: 2.0 pF)

To ensure reliable electrical contact and distribute the high filament current, all four socket terminals must be utilized, employing two terminals for each connection to the filament supply.

Absolute Maximum Ratings

The maximum ratings for the 1500T vary depending on the class of service. These ratings are absolute limits and must not be exceeded under any operating conditions.

Rating	RF Power Amp & Oscillator (Class-C Telegraphy / FM)	Plate-Modulated RF Amp (Class-C Telephony)	AF Power Amp & Modulator (Class-B, Per Tube)
Max DC Plate Voltage	8000 V	6500 V	8000 V
Max DC Plate Current	1.25 A	1.0 A	1.25 A
Max Plate Dissipation	1500 W	1000 W*	1500 W
Max Grid Dissipation	125 W	125 W	125 W

Note: The 1000 W plate dissipation limit for plate-modulated service corresponds to 1500 W at 100% sine-wave modulation.

Typical Operating Conditions

The 1500T can be configured for various high-power applications. Typical operating points for three primary modes of operation are detailed below.

1. Radio Frequency Power Amplifier or Oscillator (Class-C Telegraphy or FM Telephony)

Key-down conditions, single tube, frequencies up to 40 MHz:

Parameter	5000 V Supply	6000 V Supply	7000 V Supply
DC Plate Voltage	5000 V	6000 V	7000 V
DC Grid Voltage	-375 V	-600 V	-500 V
DC Plate Current	1.00 A	1.00 A	0.86 A
DC Grid Current (Approx.)	150 mA	165 mA	110 mA
Grid Dissipation (Approx.)	59 W	61 W	30 W
Peak RF Grid Input Voltage (Approx.)	850 V	1100 V	885 V
Calculated Driving Power (Approx.)	115 W	160 W	85 W
Plate Input Power	5000 W	6000 W	6000 W
Plate Dissipation	1500 W	1500 W	1500 W
Plate Power Output	3500 W	4500 W	4500 W

2. Plate-Modulated Radio Frequency Power Amplifier (Grid-Driven Class-C Telephony)

Carrier conditions, frequencies up to 40 MHz:

Parameter	4000 V Supply	5000 V Supply	6000 V Supply
DC Plate Voltage	4000 V	5000 V	6000 V
DC Grid Voltage	-450 V	-550 V	-650 V
DC Plate Current	0.75 A	0.70 A	0.66 A
DC Grid Current (Approx.)	85 mA	75 mA	70 mA
Grid Dissipation (Approx.)	30 W	26 W	25 W
Peak RF Grid Voltage (Approx.)	860 V	950 V	1050 V
Calculated Driving Power (Approx.)	68 W	67 W	70 W
Plate Input Power	3000 W	3500 W	4000 W
Plate Dissipation	1000 W	1000 W	1000 W
Plate Power Output	2000 W	2500 W	3000 W

3. Audio Frequency Power Amplifier or Modulator (Class-B, Grid-Driven)

Sinusoidal wave, two tubes:

Parameter	4000 V Supply	5000 V Supply	6000 V Supply
DC Plate Voltage	4000 V	5000 V	6000 V
DC Grid Voltage	-95 V	-145 V	-190 V
Zero-Signal DC Plate Current	0.50 A	0.40 A	0.33 A
Max-Signal DC Plate Current	1.88 A	1.72 A	1.65 A
Effective Load (Plate-to-Plate)	4150 Ω	6150 Ω	8200 Ω
Peak AF Grid Input Voltage (Per Tube)	485 V	535 V	570 V
Max-Signal Avg. Driving Power (Approx.)	95 W	105 W	115 W
Peak Driving Power	190 W	210 W	230 W
Max-Signal Plate Dissipation (Per Tube)	1500 W	1500 W	1450 W
Max-Signal Plate Power Output	4500 W	5600 W	7000 W

Operational Guidelines and Calculations

Grid Dissipation Calculation

The power dissipated by the grid of the 1500T must be kept below the absolute maximum rating of 125 watts. Grid dissipation ( $P_g$ ) can be calculated using the following formula:

$P_g = e_{cmp} \times I_c$

Where:

$P_g$ = Grid dissipation in watts
$e_{cmp}$ = Peak positive grid voltage (measured via a peak voltmeter connected between filament and grid)
$I_c$ = DC grid current in amperes

In applications where plate loading varies widely, such as RF heating oscillators, designers must ensure that grid dissipation does not exceed 125 watts under any loading condition.

Bias Voltage and Excitation Protection

While there is no maximum limit on the negative bias voltage, using values significantly higher than those listed in the typical operating conditions yields little advantage. If grid bias is obtained primarily via a grid leak resistor, protective circuitry must be implemented to prevent excessive plate dissipation in the event that RF excitation is lost. The grid bias resistor should be adjustable to facilitate precise adjustment of bias voltage and plate current from tube to tube.

Plate Dissipation and Tuning

Under normal operating conditions, plate dissipation must not exceed 1500 watts (or 1000 watts in plate-modulated service). During brief tuning procedures, plate dissipation is permitted to exceed the maximum rating for short periods. At its maximum rated dissipation of 1500 watts, the plate of the 1500T will glow with a visibly red-orange color.

Characteristic Curves and Performance

The performance of the 1500T is characterized by its constant current curves and driving power relationships:

Constant Current Characteristics: These curves map grid voltage against plate voltage for various constant values of plate current and grid current. They illustrate the triode's behavior across its operating envelope, showing that plate current remains highly controllable even at high plate voltages.
Driving Power vs. Power Output: Performance charts at plate voltages of 5000 V, 6000 V, and 7000 V demonstrate the relationship between plate efficiency, power output, and grid driving power. These charts reflect combined grid and bias losses only, excluding external circuit losses. They show that as plate voltage increases, higher power outputs can be achieved with relatively modest increases in driving power, provided the load impedance and bias are optimized.

Technical Summary

The 1500T is a high-power, medium-mu transmitting triode featuring a thoriated tungsten filament, an average amplification factor of 24, and a transconductance of 10,000 µmhos. Capable of handling up to 8000 V on the plate and dissipating up to 1500 W continuously, it is highly suited for demanding RF power amplification, Class-C telegraphy, plate-modulated telephony, and high-power Class-B audio modulator applications. Safe operation requires careful attention to forced-air cooling of the envelope, base, and seals, alongside protective interlocks and adjustable grid bias systems to manage grid and plate dissipation limits.

Socket description

Special 4-contact transmitting-tube base

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base: -
Socket code: SPECIAL4
Base pins: 4
Nominal heater voltage: 7.5 V
Nominal heater current: 24 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: 0.01 S
Amplification factor: 24
Max plate voltage: 8000 V
Max plate dissipation: 1500 W
Max grid dissipation: 125 W

Published maximum ratings and average characteristics promoted.

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.

Data set 01

1950 Eimac Tubes

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

Published value
1500
1500T is accomp lished by rad iation f rom the p late , wh ich ope rates at a v isib ly red temperature a t
Voltage
7.5 V
Voltage - 7.5 , volts
Current [1]
24 A
Current - - 24 .0 amperes
Current [2]
0 mA
Current - - 24 .0 amperes
Grid- Plate [1]
7
Grid- Plate 7 .2 flfLfd.
Grid- Plate [2]
2
Grid- Plate 7 .2 flfLfd.
Grid - Filament [1]
9
Grid - Filament 9 .9 fLfL f d.
Grid - Filament [2]
9
Grid - Filament 9 .9 fLfL f d.
Plate-Filament
1.5
Plate-Filament - 1.5 fLfL f d.
Transconductance (ib = [1]
1.2
Transconductance (ib = 1.2 5 amp., Eb = 6000 v., Ec = -155 v. ) 10,000 fLmhos
Transconductance (ib = [2]
5
Transconductance (ib = 1.2 5 amp., Eb = 6000 v., Ec = -155 v. ) 10,000 fLmhos
Transconductance (ib = [3]
6000
Transconductance (ib = 1.2 5 amp., Eb = 6000 v., Ec = -155 v. ) 10,000 fLmhos
Transconductance (ib = [4]
-155
Transconductance (ib = 1.2 5 amp., Eb = 6000 v., Ec = -155 v. ) 10,000 fLmhos
Transconductance (ib = [5]
10000
Transconductance (ib = 1.2 5 amp., Eb = 6000 v., Ec = -155 v. ) 10,000 fLmhos
D-C PLATE VO LTAG E
8000 V
D-C PLATE VO LTAG E - . 8000 MAX. VO LTS D-C PLATE VOLTAGE • ~ BOOO MAX. VO LTS
D·C PLATE CUR RENT [1]
1.25
D·C PLATE CUR RENT 1.25 MAX. AM PS. MAX-SIG NAL D-C PLATE CURRE NT. PER TU8 E 1.25 MAX. AM PS.
D·C PLATE CUR RENT [2]
1.25
D·C PLATE CUR RENT 1.25 MAX. AM PS. MAX-SIG NAL D-C PLATE CURRE NT. PER TU8 E 1.25 MAX. AM PS.
PLATE DISSIPATIO N [1]
1500
PLATE DISSIPATIO N 1500 MAX. WA TTS PLATE DISSIP ATIO N. PER TU8E - 1500 MAX. WA TTS
PLATE DISSIPATIO N [2]
1500
PLATE DISSIPATIO N 1500 MAX. WA TTS PLATE DISSIP ATIO N. PER TU8E - 1500 MAX. WA TTS
GR ID DISSIPATIO N [1]
125
GR ID DISSIPATIO N 125 MAX. W ATTS GRID DISSIPATIO N. PER TUBE 125 MAX. W ATTS
GR ID DISSIPATIO N [2]
125
GR ID DISSIPATIO N 125 MAX. W ATTS GRID DISSIPATIO N. PER TUBE 125 MAX. W ATTS
D·C Pla te Voltage [1]
5000 V
D·C Pla te Voltage 5000 6000 7000 vo lt s D-C Plat e Volt a ge - 4000 5000 6000 vo lts
D·C Pla te Voltage [2]
6000 V
D·C Pla te Voltage 5000 6000 7000 vo lt s D-C Plat e Volt a ge - 4000 5000 6000 vo lts
D·C Pla te Voltage [3]
7000 V
D·C Pla te Voltage 5000 6000 7000 vo lt s D-C Plat e Volt a ge - 4000 5000 6000 vo lts
D·C Pla te Voltage [4]
4000 V
D·C Pla te Voltage 5000 6000 7000 vo lt s D-C Plat e Volt a ge - 4000 5000 6000 vo lts
D·C Pla te Voltage [5]
5000 V
D·C Pla te Voltage 5000 6000 7000 vo lt s D-C Plat e Volt a ge - 4000 5000 6000 vo lts
D·C Pla te Voltage [6]
6000 V
D·C Pla te Voltage 5000 6000 7000 vo lt s D-C Plat e Volt a ge - 4000 5000 6000 vo lts
D-C Plate Curre nt [1]
1
D-C Plate Curre nt - 1.00 1.00 .860 a m ps . Ze ro -Sig na l D·C Plate Cu rr ent 500 400 330 rna .
D-C Plate Curre nt [2]
1
D-C Plate Curre nt - 1.00 1.00 .860 a m ps . Ze ro -Sig na l D·C Plate Cu rr ent 500 400 330 rna .
D-C Plate Curre nt [3]
860
D-C Plate Curre nt - 1.00 1.00 .860 a m ps . Ze ro -Sig na l D·C Plate Cu rr ent 500 400 330 rna .
D-C Plate Curre nt [4]
500
D-C Plate Curre nt - 1.00 1.00 .860 a m ps . Ze ro -Sig na l D·C Plate Cu rr ent 500 400 330 rna .
D-C Plate Curre nt [5]
400
D-C Plate Curre nt - 1.00 1.00 .860 a m ps . Ze ro -Sig na l D·C Plate Cu rr ent 500 400 330 rna .
D-C Plate Curre nt [6]
330
D-C Plate Curre nt - 1.00 1.00 .860 a m ps . Ze ro -Sig na l D·C Plate Cu rr ent 500 400 330 rna .
Peak R-F G rid Inp ut Vol t a ge (a p pr ox. ) [1]
850
Peak R-F G rid Inp ut Vol t a ge (a p pr ox. ) 850 11 00 885 vo lts Peak A-F Grid Inp ut Vo lt age ( per t ube ) • 485 535 570 vo lts
Peak R-F G rid Inp ut Vol t a ge (a p pr ox. ) [2]
11
Peak R-F G rid Inp ut Vol t a ge (a p pr ox. ) 850 11 00 885 vo lts Peak A-F Grid Inp ut Vo lt age ( per t ube ) • 485 535 570 vo lts
Peak R-F G rid Inp ut Vol t a ge (a p pr ox. ) [3]
0
Peak R-F G rid Inp ut Vol t a ge (a p pr ox. ) 850 11 00 885 vo lts Peak A-F Grid Inp ut Vo lt age ( per t ube ) • 485 535 570 vo lts
Peak R-F G rid Inp ut Vol t a ge (a p pr ox. ) [4]
885
Peak R-F G rid Inp ut Vol t a ge (a p pr ox. ) 850 11 00 885 vo lts Peak A-F Grid Inp ut Vo lt age ( per t ube ) • 485 535 570 vo lts
Peak R-F G rid Inp ut Vol t a ge (a p pr ox. ) [5]
485
Peak R-F G rid Inp ut Vol t a ge (a p pr ox. ) 850 11 00 885 vo lts Peak A-F Grid Inp ut Vo lt age ( per t ube ) • 485 535 570 vo lts
Peak R-F G rid Inp ut Vol t a ge (a p pr ox. ) [6]
535
Peak R-F G rid Inp ut Vol t a ge (a p pr ox. ) 850 11 00 885 vo lts Peak A-F Grid Inp ut Vo lt age ( per t ube ) • 485 535 570 vo lts
Peak R-F G rid Inp ut Vol t a ge (a p pr ox. ) [7]
570
Peak R-F G rid Inp ut Vol t a ge (a p pr ox. ) 850 11 00 885 vo lts Peak A-F Grid Inp ut Vo lt age ( per t ube ) • 485 535 570 vo lts
Drivi ng Powe r ( a p pr ox. ) [1]
115 W
Drivi ng Powe r ( a p pr ox. ) 115 160 85 wa tt s Max-Sig nal Avg . Driving Power (a p p rox. ) 95 105 11 5 watts
Drivi ng Powe r ( a p pr ox. ) [2]
160 W
Drivi ng Powe r ( a p pr ox. ) 115 160 85 wa tt s Max-Sig nal Avg . Driving Power (a p p rox. ) 95 105 11 5 watts
Drivi ng Powe r ( a p pr ox. ) [3]
85 W
Drivi ng Powe r ( a p pr ox. ) 115 160 85 wa tt s Max-Sig nal Avg . Driving Power (a p p rox. ) 95 105 11 5 watts
Drivi ng Powe r ( a p pr ox. ) [4]
95 W
Drivi ng Powe r ( a p pr ox. ) 115 160 85 wa tt s Max-Sig nal Avg . Driving Power (a p p rox. ) 95 105 11 5 watts
Drivi ng Powe r ( a p pr ox. ) [5]
105 W
Drivi ng Powe r ( a p pr ox. ) 115 160 85 wa tt s Max-Sig nal Avg . Driving Power (a p p rox. ) 95 105 11 5 watts
Drivi ng Powe r ( a p pr ox. ) [6]
11 W
Drivi ng Powe r ( a p pr ox. ) 115 160 85 wa tt s Max-Sig nal Avg . Driving Power (a p p rox. ) 95 105 11 5 watts

Data set 02

1962 Eimac

Published operating points and test conditions from this source.

SECTION 1

Triode

Capacitance

Grid-Plate Capacitance
7.2 pF
Grid-Filament Capacitance
9.9 pF
Plate-Filament Capacitance
1.5 pF

Other

Maximum DC Plate Current
1.25 A
RF
RF Typical Plate Voltage
7000 V
ClassC
RF Typical Plate Power Output
4500 W
ClassC
AF Typical Plate Voltage
6000 V
ClassB;TwoTubes
AF Typical Plate Power Output
7000 W
ClassB;TwoTubes

Data set 03

1965 Eimac Tube Manual

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

The EIMAC
1500 W
The EIMAC 1500T is a medium-mu power triode intended for use as an
ting of [1]
1500 V
ting of 1500 watts and a maximum plate voltage rating of 8000 volts at fre-
ting of [2]
8000 V
ting of 1500 watts and a maximum plate voltage rating of 8000 volts at fre-
The [1]
1500
The 1500T in Class-C rf service will deliver up to 4500 watts plate
The [2]
4500
The 1500T in Class-C rf service will deliver up to 4500 watts plate
power output with [1]
85 W
power output with 85 watts driving power. Two 1500T's in Class-B mod-
power output with [2]
1500 W
power output with 85 watts driving power. Two 1500T's in Class-B mod-
ulator service will deliver up to
7000
ulator service will deliver up to 7000 watts maximum-signal plate output
with
115 W
with 115 watts nominal driving power.
Voltage [1]
7.5 V
Voltage............................ 7.5 ± 0.375 V
Voltage [2]
0.375 V
Voltage............................ 7.5 ± 0.375 V
Current, at [1]
7.5 A
Current, at 7.5 volts ..................... ... 24.0 A
Current, at [2]
24 A
Current, at 7.5 volts ..................... ... 24.0 A
Direct lnterelectrode Capacitances (grounded filamc-nt)
2 pF
Direct lnterelectrode Capacitances (grounded filamc-nt)2
Grid-Plate,,,,,
7.2
Grid-Plate,,,,,....................... 7.2 pF
Grid-Filament
9.9
Grid-Filament........ 9.9 pF
Plate-Filament
1.5
Plate-Filament....... 1.5 pF
Plate and Base Seals
225
Plate and Base Seals ............ 225OC
Plate...................... ............... HR
8
Plate...................... ............... HR-8
Grid ............... HR
8
Grid ............... HR-8
RADlo FREQUENCY POWER AMPLIFIER OR TYPICAL OPERATION (Frequencies to
40 MHz
RADlo FREQUENCY POWER AMPLIFIER OR TYPICAL OPERATION (Frequencies to 40 MHz)
DC PLATE VOLTAGE [1]
8000 V
DC PLATE VOLTAGE . 8000 VOLTS Grid Dissipation 1 .........
DC PLATE VOLTAGE [2]
1 V
DC PLATE VOLTAGE . 8000 VOLTS Grid Dissipation 1 .........
DC PLATE CUFiRENT
1.25 V
DC PLATE CUFiRENT . 1.25 AMPERE Peak rf Grid Voltagel .......
PLATE DISSIPATION
1500 W
PLATE DISSIPATION . 1500 WATTS Calculated Driving Power' . . .
GRID DISSIPATION
125 W
GRID DISSIPATION . . 125 WATTS Plate Input Power .........
PLATE MODULATED RADlo FREQUENCY TYPICAL OPERATION (Frequencies to
40 MHz
PLATE MODULATED RADlo FREQUENCY TYPICAL OPERATION (Frequencies to 40 MHz)
GRID DRIVEN Class C Telephony (Carrier Conditions) Plate Voltage
4000 V
GRID DRIVEN Class C Telephony (Carrier Conditions) Plate Voltage ......... 4000
Grid Voltage
-450 V
Grid Voltage ......... -450
ABSOLUTE MAXIMUM RATINGS Plate Current
0.75 mA
ABSOLUTE MAXIMUM RATINGS Plate Current ......... 0.75
Grid Current
85 A
Grid Current ......... 85
DC PLATE VOLTAGE [1]
6500 V
DC PLATE VOLTAGE ...... 6500 VOLTS Grid Dissipationl ....... 30
DC PLATE VOLTAGE [2]
30 V
DC PLATE VOLTAGE ...... 6500 VOLTS Grid Dissipationl ....... 30
DC PLATE CuRFiENT [1]
1 V
DC PLATE CuRFiENT ...... 1.0 AMPERE Peak rf Grid Voltagel .... 860
DC PLATE CuRFiENT [2]
860 V
DC PLATE CuRFiENT ...... 1.0 AMPERE Peak rf Grid Voltagel .... 860
PLATE DISSIPATION1 [1]
1000 W
PLATE DISSIPATION1 ...... 1000 WATTS Calculated Driving Powerl. 68
PLATE DISSIPATION1 [2]
68 W
PLATE DISSIPATION1 ...... 1000 WATTS Calculated Driving Powerl. 68
GRID DISSIPATION [1]
2 W
GRID DISSIPATION 2 ...... 125 WATTS plate Input Power ...... 3000
GRID DISSIPATION [2]
125 W
GRID DISSIPATION 2 ...... 125 WATTS plate Input Power ...... 3000
GRID DISSIPATION [3]
3000 W
GRID DISSIPATION 2 ...... 125 WATTS plate Input Power ...... 3000
Plate Dissipation
1000 W
Plate Dissipation ...... 1000
Published value [1]
1 W
1. Corresponds to 1500 watts at 100% sine-wave modu- Plate Output Power ..... 2000
Published value [2]
1500 W
1. Corresponds to 1500 watts at 100% sine-wave modu- Plate Output Power ..... 2000
Published value [3]
100 W
1. Corresponds to 1500 watts at 100% sine-wave modu- Plate Output Power ..... 2000
Published value [4]
2000 W
1. Corresponds to 1500 watts at 100% sine-wave modu- Plate Output Power ..... 2000
Published value
0 mA
0R MODULATOR Class a, Grid Driven Max. Signal Plate Current . .