www.jj-electronic.sk 9 ECC83 s r. f. double triode base: noval u f = 6,3/12,6 v i f = ca.300/150 ma typical characteristic: u a = 250 v u g = -2 v i a = 1,2 ma s = 1,6 ma/v r i = 62,5 k ? =100 limiting values: u a = 300 v w a =1 w i k =8 ma u g = -50 v r g = 2,2 m ? u k/f = 180 v r k/f = 150 k ? capacitances: system i. system ii. c g/k = 1,6 1,6 pf c a = 0,33 0,33 pf c g/a = 1,7 1,7 pf dimension and connections: 8 ECC83 - 12ax7, 7025 u b = 250 400 250 400 250 400 v r a = 47 47 100 100 220 220 k ? r g = 150 150 330 330 680 680 k ? r k = 1,2 0,68 1,5 0,82 2,7 1,2 k ? i a = 1,18 2,45 0,86 1,72 0,48 1,02 ma operating characteris- tics: resistance - coupled amplifer cathode grid bias www.jj-electronic.sk free datasheet http://
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