12BH7-A - JJ Electronic

Limiting Values: ua = 300 V ug = -50 V. Wa = 3,5 W u+k/f- = 200 V u-k/f+ = 100 V ik = 20 mA. Rg = 0,25 MΩ (fixed bias). = 1,0 MΩ (cathode bias) max 22,0 max 57 ...
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12BH7-A fc

1

9

a’

k 8

2

3 k’

g 7 a

g’

6

5

4 f

f

R. F. double triode

Base: NOVAL Uf = 6,3 or 12,6 V If = 600 or 300 mA Typical Characte­ristics: Ua = 250 V Ug = -10,5 V Ia = 11,5 mA S = 3,1 mA/V Ri = 5,3 kΩ µ = 16,5

max 57,6

max 51,2

max 22,0

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Limiting Values: Ua = 300 Ug = -50 Wa = 3,5 U+k/f- = 200 U-k/f+ = 100 Ik = 20 Rg = 0,25 = 1,0

V V W V V mA MΩ (fixed bias) MΩ (cathode bias)

R. F. double triode

Transfer characteristics

plate characteristics Ia(mA) 50

12BH7-A

12BH7-A

Ia=f(-Ug1)

Ia=f(Ua)

,0V

V

-1 5,0

V

-2

5,

-2

0,0

V

20

0V

150 V

V 250

350

V

V

-10

30

50V Ua=4

-5,0

Ug=0

V

40

-3 0, 0

10

0V

5,

-3

0 -40 Ug(V)

-30

-20

-10

0

0

100

200

300

400

500

600 Ua(V)