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The USA tubes and their Soviet analogues
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  
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