Data: Pentodes

SMALL SIGNAL TETRODES / PENTODES
(all data shown is in triode mode)
tube   Uf
(V)
If
(A)
Ua
(V)
Ia
(mA)
Ug
(V)
Rp
(ohm)
mu gm
(mA/V)
Pd
(W)
comment
E180F pentode 6.3 0.3 120 18 -0.9 2400 40 16.5 2.7 =6688
E184F                      
E280F pentode 6.3 0.31       2300 60 26.0 4 =7722
E810F pentode 6.3 0.34 166 26 -2.6 1000 50 50 5 =7788
5847 pentode 6.3 0.3           12.5 3.3 =404A
D3a pentode 6.3 0.31 200 30   2000 68 34 4.5  
                       
6E5P tetrode 6.3 0.6 200 50   960 30 32 10.6  
6E6P tetrode 6.3 0.61 200 30   1300 34 25 8.8  
6J9P   6.3 0.3 125 16   1000 36 35 3.75  
6J11P   6.3 0.44 150 40   1200 40 33 6  
6J49P   6.3 0.3 200 16   2500 44 17.5 3.4  
6J51P   6.3 0.3 150 23   2700 78 29 2.5 ~E184F
6J52P   6.3 0.33       1000 50 50 10 ~E810F


Some operating points thanks to Pete Millett and Ale Moglia.

 

 

POWER TETRODES / PENTODES
tube     If
(A)
Pa
(W)
Pg2
(W)
Ua^
(V)
Ug^
(V)
Ia^
(mA)
Po
(W)
Rp
(ohm)
mu gm
(mA/V)
comment
4P1L pentode 4.2 0.325 7.5 1.5 250 250 50 2.5 1100 8 6.0 directly heated, triode connected
EL84 pentode 6.3 0.76 12 2.0 300 300 65 4.5   19 11.3  
                           
6L6GC tetrode 6.3 0.9 30 5.0 500 500 66? 10.8     5.0  
5881 beam pentode 6.3 0.9 23 3.0 400 400 80? 11.3     5.3  
KT66 beam pentode 6.3 1.3 25 3.5 500 500 200 16     5.5  
                           
EL34 pentode 6.3 1.5 25 8.0 800 425 150 10 1000 11 11.0  
EL34 Svetlana pentode 6.3 1.5 25 8.0 800 600 150   1000 11 11.0  
EL34B pentode 6.3 1.5 25 8.0 800 425 150 11 1000 11 11.0  
6CA7 pentode 6.3 1.5 25 8.0 800 425 150 11 1000 11 11.0  
KT77 beam tetrode 6.3 1.4 25 6.0 600 600 180   1100 11.5 10.5  
                           
6550C                          
KT88 beam pentode 6.3 1.6 35 6.0 600 600 175   695 8 11.5  
KT120 pentode 6.3 1.8 60 8.0 850 650 230 20     12.5  
KT150 pentode 6.3 1.85 70 9.0 850 650 250 20     12.6