Common Tube Model Code World-wide Guide

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European

Chinese

Russian

Premium Model

12AT7

ECC81

-

-

M8162, 6201, ECC801S, E81CC, 7728, B309, B739, A2900

12AU7

ECC82

-

-

M8136, 7316, ECC802S, E82CC, 7730, B329, B749

12AX7

ECC83

-

-

M8137, 7025, ECC803S, E83CC, 7729, B339, B759

6DJ8

ECC88

6N23

6N23P

CCa

6922

E88CC

6N11

6N23-EW

 

7308

E188CC

-

-

 

8223

E288CC

-

-

 

6SN7

6SN7

6N8P

6N8S

B65

6SL7

6SL7

6N9P

6N9S

 

6267

EF86

6J8

6J32P

Z729, ECC806S

5687

5687

6N12P

-

5687WA

6N7

ECC40

6N1

6N1P

6N1P-EV

6AX7

ECC41

6N2

6N2P

6N2P-EV

         

6BM8

ECL82

-

6F3P

 

6GW8

ECL86

-

-

 
         

6BQ5

EL84

6P14

6P14P

N709, E84L, 7320, 7189, 7189A

6CA7

EL34

-

-

KT77, E34L

6L6

6L6

6P3P

6P3S

KT66, EL37, WE350B, VT75

6V6

6V6

6P6P

6P6S

KT63, 5992

6550

-

6P27P

6P27P

KT88

         

5AR4

GZ34

-

-

U77, 52KU

5U4G

5U4G

5Z3P

5Z3S

U52, WE274A/B, 53KU

5V4G

GZ32

-

-

U51, 54KU

5Y3

-

5Z2P

5Z2S

U50

5Z4

GZ30

5Z4P

5Z4S

 

6X4

EZ90

-

-

U707, U78

6X5

EZ35

-

-

U70, U147

6CA4

EZ81

-

-

U709

6V4

EZ80

-

-