813

Thoriated-Tungsten Filament U0

2 W

Thoriated-Tungsten Filament U00Watts Input on Phone (ICAS) upto30Mc 7-1/2" Max. Length

High Power Sensitivity

6 W

High Power Sensitivity 500 Watts Input on CW (ICAS)up to 30 Mc 2-9-|6" Max. Diameter

power amplifier and modu-~ ces®

1045 A

power amplifier and modu-~ ces® 1045°®

tator. The

2500 V

tator. The 813 has a maximum DC PLATE VOLTAGE . . . . . . . . . 2250 max. 2500 max. volts

DC GR!D-No

1100 V

DC GR!D-No.2 (SCREEN) VOLTAGE. . . 1100 max, 1100 max, volts

plate dissipation of

225 mA

plate dissipation of 125 MAX.~SIGNAL DC PLATE CURRENT®. . . 180 mex. 225 max. ma

watts under [CAS conditions MAX.-SIGNAL PLATE INPUT*

450 W

watts under [CAS conditions MAX.-SIGNAL PLATE INPUT* . . . . . 360 max, 450 max., watts

MAX.~SIGNAL GRID-No

22 W

MAX.~SIGNAL GRID-No.2 INPUT* . . . 22 max. 22 max, watts

PLATE DISSIPATION* . . . . .. « «

125 W

PLATE DISSIPATION* . . . . .. « « 100 max. 125 max., watts

with full input to

2500 MHz

with full input to 30 Mc and DC Plate voltage . . . . 1500 2000 2250 2500 volts

to 120 Mc. DC Grid—No.3

3 MHz

to 120 Mc. DC Grid—No.3

(Suppressor)Vo]taget. [+

0 V

(Suppressor)Vo]taget. [+ 0 0 0 volts

of its high power DC Grid-No

750 V

of its high power DC Grid-No.2 Vvoltage™ . 7500 750 750 750 volts

sensitivity, the

813 V

sensitivity, the 813 requires Grid) voltage:

very little driving power to From fixed-bias source -g5 ~

95 V

very little driving power to From fixed-bias source -g5 ~90 -95 ~95 volts

give full power output. For Grid-No

180 V

give full power output. For Grid-No.1 Voltage§. 160 160 170 | 180 volts

example, inclass C telegraph Current

50 A

example, inclass C telegraph Current . . . . . . 50 50 50 50 ma

. . . 305 265 255 290 ma

290 mA

. . . 305 265 255 290 ma

capable of giving a power No

2 mA

capable of giving a power No.2 Current . . . . 2 2 2 2 ma

output of approximately

53 W

output of approximately 375 watts with a driving No.2 Current . . . . 45 43 53 S5U m

power of only about

4 W

power of only about 4 watts. Effective Load Resis—

tance (Plate toplate)

19000 ohm

tance (Plate toplate) 9300 16000 20000 {19000 ohms

Power (Approx.?

0 W

Power (Approx.?. 0 0 0 0 watts

Electrical: put (Approx.)

490 W

Electrical: put (Approx.) . . . 260 335 380 490 watts

voltage (AC or DC) . . . + « v «

5 V

voltage (AC or DC) . . . + « v « . . 10.0%5% volts

Transconductance (Approx.) for plate with fixed bias e

30000 ohm

Transconductance (Approx.) for plate with fixed bias e 4 e s 4 s e s e s ¢« 30000 max. ohms

volts =

100 V

volts = 2000, grid-No.2 volts =100, With cathode bias . & . « ¢ v v ¢ v o o W Not recommended

and plate current=

3750 mA

and plate current=50ma . . « . . . 3750 pmhos

for plate volts=

2 V

for plate volts= 2000, grid-No.2

volts =

8.5 V

volts =400, and plate current =50 ma. 8.5 Carrier conditions per tube for use with

DC PLATE VOLTAGE . . . +» + « »

2250 V

DC PLATE VOLTAGE . . . +» + « » . 2000 max. | 2250 max. volts

and grid No

400 pF

and grid No.3 . . ¢ . . ¢ b .o s 14 upf DC GRID~No.2 (SCREEN) VOLTAGE. . . 400 max, 400 max. volts

DC PLATE CURRENT . . & & v & & & &

125 mA

DC PLATE CURRENT . . & & v & & & & 100 max. 125 max. ma

Mechanical: PLATE INPUT o & & v ¢ o o s o o &

200 W

Mechanical: PLATE INPUT o & & v ¢ o o s o o & 150 max, 200 max, watts

Mounting Position. . vertical, Base up or down; Horizontal, GRID=N0

20 W

Mounting Position. . vertical, Base up or down; Horizontal, GRID=N0.2 INPUT & & & o ¢ o ¢ o « 15 max, 20 max, watts

with pins

125 W

with pins 2 & 6 in vertical plane PLATE DISSIPATION . « . & o v 4 & 100 max. 125 max, watts

Maximum Diameter . « . v « & v &+ &+ o o « s o o o

2250 V

Maximum Diameter . « . v « & v &+ &+ o o « s o o o 2-9/16" DC Plate voltage . . . . . . . . » 1500 2000 | 2250 volts

BUTD & v & v v v e e e e e e e e . . . T=

0 V

BUTD & v & v v v e e e e e e e e . . . T=20 DC Grid-No.3 (Suppressor) voltaget. 0 0 0 volts

CBP + = « + s s

0 V

CBP + = « + s s 4 » e s « s « s o Medium (JETEC No.C1-5) DC Grid-No.2 Voltage . . . « . . . %00 %001 u00 volts

DC Grid-No

4.3 W

DC Grid-No.1 (Control-— Driving Power (Approx.)B&, | | 2.9 2.7 | 4.3 watts

Grid) Voltage®® . . .. ... ~

300 V

Grid) Voltage®® . . .. ... ~60 =75 | =60 volts Power Output (Approx.) . . . . 140 180 300 watts

Peak RF Grid-No

70 V

Peak RF Grid-No.1 voltage . . . . 70 80 70 volts

DC Plate Current . . . . « . . «

85 mA

DC Plate Current . . . . « . . « . 100 75 85 ma Maximum Circuit Values {(CCS or ICAS):

DC Grid-No

30000 mA

DC Grid-No.2 Current . . . . . . . 4 3 3 ma Grid-No.1-Circuit Resistance . . . . . . . . 30000 max. ohms

0OC Grid-No.1 Current . . . . . . . X x X ma

1 mA

0OC Grid-No.1 Current . . . . . . . X x X ma

Power Output (Approx.)

70 W

Power Output (Approx.) . . . . . . 50 50 70 watts

Grid-No

30000 ohm

Grid-No.1 Circuit Resistance . . . . . . . . 30000 max. ohms

DC PLATE VOLTAGE . . .,

2250 V

DC PLATE VOLTAGE . . ., . . . . . . 2000 max. 2250 max. volts

GR1D-MODULATED RF POWER AMPLIFIER - DC GRID-No

400 A

GR1D-MODULATED RF POWER AMPLIFIER - DC GRID-No.2 (SCREEN) VOLTAGE. . . 400 max. 400 max. volts

Class C Telephony DC GRID-No

300 V

Class C Telephony DC GRID-No.1 (CONTROL~GRID)VOLTAGE -300 max. | —300 max, volts

Carrier conditions per tube for use with DC PLATE CURRENT

225 mA

Carrier conditions per tube for use with DC PLATE CURRENT . . . . . . . . . 180 max. 225 max. ma

a max. modulation factor of

30 mA

a max. modulation factor of 1.0 DC GRiD-No.1 CURRENT . . . . . . . 25 max. 30 max. ma

PLATE INPUT & & v & s & &

500 W

PLATE INPUT & & v & s & & 2 o o « 360 max, 500 max, watts

GRID=N0

22 W

GRID=N0.2 INPUT. & v ¢« v 4 + o « & 22 max. 22 max, watts

ccs®

125 W

ccs® 1045%® PLATE DISSIPATION . . . . « . . . 100 max. 125 max. watts

DC PLATE VOLTAGE

2250 V

DC PLATE VOLTAGE . . . . . . . . 2000 max. 2250 max, volts

DC GRID~No

400 V

DC GRID~No.2 (SCREEN) VOLTAGE. . 400 max, 400 max, volts Typical Operation:

DC GR1D-No

2250 V

DC GR1D-No.1 (CONTROL~ DC Plate Voltage . . . . 1250 1500 2000 2250 volts

GRID) VOLTAGE., . . « . . . . =

3 V

GRID) VOLTAGE., . . « . . . . =200 max. ~200 max. volts DC Grid—No.3 (Suppressor)

DC PLATE CURRENT

0 mA

DC PLATE CURRENT . . . . . . . . 100 max, 125 max. ma VOltage% C e e e e 0 0 0 0 volts

PLAFE INPUT « o o & & « o« «

400 W

PLAFE INPUT « o o & & « o« « . 150 max. 200 max. watts DC Grid-No.2 voltage®®. 300 300 300 | 400 volts

Current at

1 V

Current at 10.0 volts . ., . . . . . 5.0 amp Grid-No.,1—<Circuit Resistance:

Mu~Factor, grid No

1 A

Mu~Factor, grid No.2 to grid No.1 RF POWER AMPLIFIER - Class B Telephony

Filament voltage

10 V

Filament current

5 A

Maximum direct plate voltage

2250 V

Maximum plate dissipation

125 W

HeaterOrFilamentVoltage

10 V

HeaterOrFilamentCurrent

5 A

FrequencyForMaximumRatings

30 MHz

Maximum Signal Power Output

650 W

ClassC

Transconductance

3750 µS

Amplification Factor

8.5

Maximum Plate Voltage

2500 V

Maximum Screen Voltage

1100 V

Maximum Plate Dissipation

125 W

Maximum Cathode Current

225 mA

Full-Input Operating Frequency Maximum

30 MHz

Power Output

490 W

ClassAB1,AF,TwoTubes

Typical Plate Voltage

2250 V

Representative published point

Typical Plate Current

255 mA

Representative published point

Maximum plate voltage

1500 V

Published Amperex table

Maximum screen voltage

300 V

Published Amperex table

Power output

190 W

Published Amperex table

Plate dissipation

100 W

Published Amperex table

Plate current

180 mA

Published Amperex table

Grid bias

70 V

Published Amperex table

Grid current

6 mA

Published Amperex table

Maximum frequency

30 MHz

Published Amperex table

Heater/filament voltage

10 V

Published Amperex table

Heater/filament current

5 A

Published Amperex table

Plate voltage

2000 V

RFPower

Plate current

180 mA

RFPower

Power output

275 W

RFPower

Grid voltage

-120 V

RFPower

Grid current

10 mA

RFPower

Maximum frequency

120 MHz

RFPower

Grid-to-plate capacitance

0.25 pF

Input capacitance

16.3 pF

Output capacitance

14 pF