wec tubes for radio and broadcasting

Western Electric Vacuum Tubes

GENERAL BULLETIN

Tabular Characteristic Data

and

Arrangement of Terminal Connections

2 WITHOUT BAYONET PIN

2A

Western Electric Company

VACUUM TUBES

ARRANGEMENT OF TERMINALS AND CON JECTIONS VIEWED FROM BOTTOM

3 4 6 7

9 10 II

WITHOUT BAYONET PIN

IIA

12

17

25

G2

33

2

18 19 20


26A

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27

Kt F

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28A

13 14

21 22

29 30

A

15

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16

23 WITH FLEXIBLE LEADS

-0I0N TERMINALS I.3,í4

C3t P FC

23A

24

31 32

34 35 WITHOUT BAYONET PIN

3SA G2 G3

37 38 39 40

D

41 42 43 d4

47 48

SI

CA

59 60

G2

49 50

53 54

61

A -ANODE CA- CONTROL ANODE

CAR -CONTROL ANODE THRO,H RESISTANCE

0- DEFLECTOR PLATE EA- ACCELERATING ELECTRODE

- KEYWAY

-KEY

CONNECTN IN SHELL OF SCREW TYPE BASE

62

2

45 46

55 56

63

Er- FOCUSSING ELECTRODE EM- MODULATING ELECTRODE

F -FILAMENT FC -FILAMENT CENTER

G -GRID

- CONNECTION IN BULB

-BAYONET PIN

CENTER CONNECTION IN

SCREW TYPE BASE

- 210 -

H -HEATER K- CATHOOE

NC - NO CONNECT ON P - PLATE

PBF -BEAM- FORMING PLATES

57

-SOCKET CONNECTIONS

- FLEXIBLE LEADS

58

CONTACT PINS THAT ARE NUMBERED ARE ON ONE SIDE OF TUBE


VACUUM TUBES FOR RADIO TELEPHONE BROAD CASTING

CLASSIFICATION Western Electric Vacuum Tubes

-FOR- Radio Telephone Broadcasting

Issue 8 Mar. 15, 1942

Replaces Issue 7 Oct. 1, 1941

LIST OF TUBES IN CATALOG NOTE: Data sheets combining information on more than one tube are filed under the code number shown in parenthesis. lO1D 1O1F(Iss. 2) 101FA 101J 102D 102F(Iss. 2) 102G 104D 205D 205E 212E 215A 220C (Iss. 2) 222A 228A 231 D 232B

233B 257A 236A 258B(249B) 240B 259A 241B 2598 242C 262B 244A 263A 245A 263B 246A 264C 247A 2668 (249B, Iss. 2) 249B (Iss. 2) 266C (24913, Iss. 2) 251A 267B(249B, Iss. 2) 252A 268A 253A (249B, Iss. 2) 269A 254A 270A 254B 271A 255B (249B, Iss. 2) 272A 256A 274A

275A 276A 279A 281A 282A 283A 284D 285A 286A 287A 295A 297A 298A &B 300A &B 301A 303A 305A

306A 328A 307A 329A(311A) 308B 331A 309A 332A (322A) 310A 333A 310B 336A 311A 338A 312A 340A 313C 342A 314A 343A 315A(249B, Iss. 2) 343AA 316A 345A 319A(249B, Iss. 2) 346A 321A(249B, Iss. 2) 347A (262B) 322A 348A(310B) 323A(287A) 349A(336A) 325- 326(Iss. 2) 351A(345A)

352A 353A 354A(287A) 355A (287A) 356A 357A 363A 364A 368A 368AS (368A) 371A 378A(371A) 380A 381A(380A) 384A 385A(384A) 388A(368A)

Class A -Audio Frequency Amplifier or Modulator

Typical Output Power Code Filament Plate

Watts No. Volts Amps. Volts

Class B -Audio Frequency Amplifier or Modulator -2 -Tube Circuit

Typical Output Power Code Filament Plate

Watts No. Volts Amps. Volts 0.87 0.87 1.6 4 4.5 4.5 6.2 7.5 9 9

20 22 40 50 50 50 90

100 130 155

285

650 650

*760

205D 205E 271A 268A 336A 349A 252A 300A 306A 307A 276A 242C 284D 212E 241B 308B 270A 363A 251A 279A 228A 343A 343AA

*220C

4.5 4.5 5.0 5.0

10.0 6.3 5.0 5.0 2.75 5.5

10.0

10.0

10.0

14.0

14.0

14.0 10.0 10.0 10.0

10.0 21.5 21.5 21.5 21.5

1.6 1.6 2.0 3.25 0.61 1.0 2.0 1.2 2.0 1.0

3.0 3.25 3.25 6.0 6.0 6.0 9.75

10.0 16.0 21.0 41.0 57.5 57.5 41.0

350 350 350 750 250 250 450 350 300 300

1250 1250 1250 1500 1500 1500 2500 2000 2500 2500 6000

12500 12500 12500

50 268A 1.10 2811) 175 276A 200 212C 200 356A 200 364A 250 295A 370 331A 575 308B 650 212E 650 241B

1000 270A 1625 357A 1650 363A 2000 251A 2200 279A 3750 228A

*14000 * 220C 17500 21OB 18000 343A 18000 343AA 25000 236A 30000 310A 30000 342A

140000 298A

Grid Bias Modulator Peak Code

Power Output No.

5.0 3.25 10.0 3.25 10.0 3.0 10.0 3.25 5.0 5.0 5.0 5.0

10.0 3.25 10.0 3.25 14.0 6.0 14.0 6.0 14.0 6.0 10.0 9.75 10.0 10.0 10.0 10.0 10.0 16.0 10.0 21.0 21.5 41.0 21.5 41.0 21.5 41.0 21.5 57.5 21.5 57.5 21.5 41.0 20.0 72.0 20.0 67.0 27.0 225.0

Filament Volts Amps.

750 1250 1250 1250 1500 1500 1250 1500 1750 2000 2000 2500 4000 4000 3000 2500 5000

10000 12000 12500 12500 17500 15000 15000 15000

Plate Volts

200 200 250

212E 241B 270A

14.0 14.0 10.0

6.0 6.0 9.75

3000 3000 3000

'Revised ratings in this classification sheet supercede those in data sheet. Copyright, 1937. 1938. Western Electric Company, Incorporated Copyright. 1939, Western Electric Company, Incorporated Copyright, 1941, Western Electric Company, Incorporated Copyright, 1942, Western Electric Company, Incorporated

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