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Marking Type Filament Typical mode of operation The basic parameters Pp max.
Watt Analogue

Uh
V Ih
A Up
V Ugl
V Ug2
V Ip
mA S
mA/V μ Ri
kOhm

1AD5 RF pentode 1.25 0.04 67.5 -6 67.5 1.85 0.735 - 700

1G4 Triode 1.4 0.05 90 -6 - 2.3 0.8 8.8 10.7

1G6 Double triode 1.4 0.1 90 0 - 1.0 0.82 33 40

1N5 RF pentode 1.4 0.05 90 -4 90 1.2 0.75 1500

1T5 Beam tetrode 1.4 0.05 90 -6 90 6.5 1.15 250

1U4 RF pentode 1.4 0.05 90 -4 90 1.6 0.9 1000

1V5 Pentode 1.25 0.04 67.5 -4.5 67.5 2.0 0.75 150

2A3 Power triode 2.5 2.5 250 -45 - 60 5.25 4.2 0.8 15 2С4С

2C50 Double triode 12.6 0.3 300 -24 - 12.5 1.75 9.5

2C51 Double triode 6.3 0.3 150 -2 - 9.8 5.5 1.5 6НЗП

2C53 High-voltage triode 6.3 0.3 4000 -5 - 2.5 0.95 500

6A3 Power triode 6.3 1.0 250 -45 - 60 5.25 4.2 0.8 6С4С

6A5 Power triode 6.3 1.25 250 -45 - 60 5.25 4.2 0.3 15 6С4С

6AB4 Triode 6.3 0.15 250 -2 - 10 5.5 60 10.9 2.5

6AC7 RF pentode 6.3 0.4 300 -2 300 10 9 1000 3.0 6Ж4

6AG5 RF pentode 6.3 0.3 250 -1.5 150 6.5 5 800 2.0 6ЖЗП

6AG7 Power pentode 6.3 0.65 300 -3 150 30 11 130 10 6П9

6AH6 RF pentode 6.3 0.45 300 -2 150 10 9 500

6AK5 RF pentode 6.3 0.175 180 -2 120 7.7 5.4 500 1.7 6Ж1П

6AL5 Double diode 6.3 0.3 117 - - 9 - - - 6Х2П

6AQ5 Beam tetrode 6.3 0.45 250 -12.5 250 45 4.1 52 12 6П1П

6AQ6 Diode-Triode 6.3 0.15 250 -3 - 1.0 1.2 70 58 6Г7

6AS6 Pentode 6.3 0.175 120 -2 120 5.2 3.2 110 1.7 6Ж2П

6AS7 Double triode 6.3 135 -30 - 125 7 2 0.25 13 6Н5С

6AU6 RF pentode 6.3 0.3 250 -1 150 10.6 5.2 1000 3.0 6Ж4П

6B4G Power triode 6.3 1 250 -45 - 60 5.25 4.2 0.8 6С4С

6BA6 RF pentode 6.3 0.3 250 -1/
-20 100 11 4.4 1500 3.0 6К4П

6BE6 Pentagrid 6.3 0.3 250 100 2.3 0.475 1000 1 6A7
6А2П

6BF5 Beam tetrode 6.3 1.2 ПО -7.5 110 36 7.5 12 5.5

6BG6 Transmitting tetrode 6.3 0.9 400 400 70 6 20 6П7С

6C4 Triode 6.3 0.15 250 -8.5 - 10.5 2.2 17 7.7 3.5

6C5 Triode 6.3 0.3 250 -8 - 8 2.0 20 10 6С5С

6CB6 RF pentode 6.3 0.3 200 -2 150 2.5 6.2 600 2.0

6CL6 Power pentode 6.3 0.65 250 -3 150 30 11 150 7.5 6П9

6F6 Power pentode 6.3 0.7 285 -20 285 38 2.6 78 11

6F7 Triode-pentode 6.3 0.3 250
250 -3
-3 100 6.5
3.5 1.1
0.5 8 850
16

6F8G Double triode 6.3 0.3 250 -8 - 10 2.6 20 7.7 2.5 6Н8С

6F12 RF pentode 6.3 0.3 250 -2 250 10 7.5 2.5

6F33 Pentode 6.3 0.3 250 250 4.3 2.5

6H6 Double diode 6.3 0.3 150 - - 8 - - - 6Х6С

6J5 Triode 6.3 0.3 250 -8 - 9 2.6 20 7.7 2.5 6С2С

6J6 Double triode 6.3 0.45 150 -10 - 8.5 5.3 38 7.1 1.5 6Н15П

6K4 Triode 6.3 0.3 200 - 11.5 3.45 16 4.65 3 6СЗБ

6K6 Power pentode 6.3 0.4 250 -18 250 32 2.3 90 8.5

6L6 Beam tetrode 6.3 0.9 250 -14 250 72 6 22.5 19 6ПЗС

6L7 Pentagrid 6.3 0.3 250 -3/
-15 100 5.3 1.1 600 1.5 6П7

6N7 Double triode 6.3 0.8 250 -3 - 7 3.2 35 6 6Н7С

6S4 Triode 6.3 0.6 250 -8 - 26 4.5 16 3.5 7.5

6SC7 Double triode 6.3 0.3 250 -2 - 2 1.3 70 53

6SF5 Triode 6.3 0.3 250 -2 - 0.9 1.5 100 66

6SJ7 RF pentode 6.3 0.3 250 -3 100 3.0 1.65 1000 3.0 6Ж8

6SK7 RF pentode 6.3 0.3 250 -3/
-35 100 9.2 2.0 800 4.0 6К3
6К9С

6SL7 Double triode 6.3 0.3 250 -2 - 2.3 1.6 70 44 1.0 6Н9С

6SN7 Double triode 6.3 0.6 250 -8 - 9 2.6 20 7.7 3.5 6Н8С

6SR7 Diode-Triode 6.3 0.3 250 -9 - 9.5 1.9 16 8.5 2.5 6Г1

6U8 Triode-pentode 6.3 0.45 250
150 -7
-10 100
- 10
18.5 5.2
8.5 40 400
5 2.8
2.7

6Y6GT Beam tetrode 6.3 0.45 250 -12.5 250 45 4.1 50 6П6С

6Y6 Beam tetrode 6.3 1.25 200 -14 135 6.1 7.1 18.3 12.5

7A5 Beam tetrode 6.3 0.75 125 -9 125 44 6 17 5.5

7C5 Beam tetrode 6.3 0.45 250 -12.5 250 45 4.1 52 12

7E6 Diode-Triode 6.3 0.3 250 -9 - 9.5 1.9 16 8.5 6Г1

7G7 RF pentode 6.3 0.45 250 -2 100 6 4.5 800 1.5

7N7 Double triode 6.3 0.6 250 -8 - 9 2.6 20 7.7 2.5

12AU6 RF pentode 12.6 0.15 250 -1 150 10.6 5.2 1000 3 6Ж4П

12AU7 Double triode 12.6 0.15 250 -8.5 - 10.5 2.2 17 7.7

12AX7 Double triode 12.6 0.15 250 -2 - 1.2 1.6 100 62.5 1.0 6Н2П

12BA6 RF pentode 12.6 0.15 250 -1/
-20 100 11 4.4 1500 3 6К4П

12BE6 Hexode 12.6 0.15 250 100 2.9 0.47 1000 1.0

12BH7 Double triode 12.6 0.3 250 -10 - 11.5 3.1 16.5 5.3 3.5

12SL7 Double triode 12.6 0.15 250 -2 - 2.3 1.6 70 4.4 1.0 6Н9С

12SN7 Double triode 12.6 0.3 250 -8 - 10 2.6 20 7.7 3.5 6Н8С

12SR7 Diode-Triode 12.6 0.5 250 -9 - 9.5 1.9 16 8.5 2.5 12Г1

25L6 Beam tetrode 25 0.3 200 -8 110 50 9.5 30 10

26A6 RF pentode 26.5 0.07 250 -2
-25 100 10.5 4 1000 3.0

26A7 Double beam tetrode 26.5 0.6 26.5 -4.5 26.5 19 5.7 2.5

45 Triode 2.5 1.5 250 -50 - 34 2.2 3.5 1.6

50L6 Beam tetrode 50 0.15 200 -8 110 50 9.5 30 10

57 RF pentode 2.5 1.0 250 -3 100 2 1.2 1000

300A Power triode 5 1.2 300 -65 - 40 4.9 3.8 0.8 40

304TH Transmitting triode 5 25 3000 - 900 16.7 20 300

403B RF pentode 6.3 0.15 180 120 7.7 5.1 500 1.7

450TL Transmitting triode 7.5 12 6000 -900 - 600 6.65 38 450

807 Beam tetrode 6.3 0.9 500 -14.5 200 50 5.7 39 30

815 Double beam tetrode 12.6 0.8 500 -17.5 225 150 4.0 25

829B Double beam tetrode 12.6 1.125 750 -17.5 250 240 8.5 40 2x ГУ-29

954 RF pentode 6.3 0.15 250 -3 100 2 1.4 1000 6Ж14

959 RF pentode 1.25 0.05 135 -3 67.5 1.7 0.6 800 6ДЗД

1603 RF pentode 6.3 0.3 250 -3 100 2 1.2 1500

1614 Beam tetrode 6.3 0.9 550 -125 400 110 6 25

1620 RF pentode 6.3 0.3 250 -3 100 2 1.2 1000

1622 Beam tetrode 6.3 0.9 300 -20 250 86 14

5654 Pentode 6.3 0.175 180 120 7.7 5.1 500 6Ж1П

5670 Double triode 6.3 0.35 150 -8 - 8.2 5.5 35 1.5 6НЗП

5687 Double triode 12.6 0.45 250 - 12.5 - 12.5 5.5 16.5 3 4.2

5691 Double triode 6.3 0.6 250 -2 - 2.3 1.6 70 4.4 1.0 6Н9С

5692 Double triode 6.3 0.6 250 -9 - 6.5 2.2 20 9.1 1.75 6Н8С

5693 Pentode 6.3 0.3 250 -3 100 3.0 1.65 1000 3.0 6Ж8

5719 Triode 6.3 0.15 150 - 1.85 2.3 70 30

5751 Double triode 6.3 0.35 250 -3 - 1 1.2 70 58 0.8

5814 Double triode 12.6 0.175 250 - 8.5 - 10.5 2.2 17 7.3 2.7

5881 Beam tetrode 6.3 0.9 250 -18 250 53 5.2 48 23 6П3С-Е

5963 Double triode 12.6 0.15 2.8 22 7.8 2.5 6Н8С

5964 Double triode 6.3 0.45 6 39 6.5 1.5

6005 Beam tetrode 6.3 0.45 250 -12.5 250 45 4.1 52 12 6П1П

9001 RF pentode 6.3 0.15 250 -3 100 2 1.4 1000

9006 Diode 6.3 0.15 300 3

CK525AX Pentode 1.25 2 22.5 - 1.2 22.5 0.25 0.32

CK571 Triode 1.25 0.01 10.5 -3 - 0.2

CK5702 Pentode 6.3 0.2 120 -2 120 7.5 5 6Ж1Б

EF36 RF pentode 6.3 0.25 250 -2 100 3 1.8 2500 2 6Ж4

EF37A RF pentode 6.3 0.25 250 -2 100 3 1.8 2500 2 6Ж4

EF42 RF pentode 6.3 0.36 250 -2 250 10 9 500 3.5

EF91 RF pentode 6.3 0.3 250 -2 250 10 7.6 1000 2.5

EL33 Power pentode 6.3 0.9 250 -6 250 36 9 50 9

EL37 Power pentode 6.3 1.4 250 13.5 250 100 11 13.5 25