%%%%electron tubes(diode, triode, pentode, heptode)%%% %cathode \newcommand{\cathode}{ \put(0,0){\oval(6,6)[t]} \put(-3,-4){\line(0,1){4}} } %focus \newcommand{\focus}{ \put(0,0){\oval(3,3)[t]} \put(-1.5,0){\line(0,-1){4}} \put(1.5,0){\line(0,-1){4}} } %grids in valve \newcommand{\gr}[1]{ \multiput(0,0)(0,2.5){#1}{\multiput(0,0)(3,0){3}{\line(1,0){2}}} } %anode \newcommand{\anode}{ \put(0,0){\line(1,0){5}} \put(2.5,0){\line(0,1){5}} } %connection \newcommand{\conn}[1]{ \ifnum#1=1 %right \put(0,0){\line(1,2){2}} \put(2,4){\line(0,1){6}} \put(2,10){\line(-1,0){1}} \fi \ifnum#1=2 %right \put(-1.5,0){\line(1,0){1.5}} \put(0,0){\line(1,2){2}} \put(2,4){\line(0,1){6}} \put(2,10){\line(-1,0){1}} \fi \ifnum#1=3 %right \put(0,0){\line(1,2){2}} \put(2,4){\line(0,1){11}} \put(2,15){\line(-1,0){1}} \multiput(-8,7.5)(0,5){2}{\line(1,0){1}} \put(-8,7.5){\line(0,1){5}} \fi \ifnum#1=4 %right \put(-1.5,0){\line(1,0){1.5}} \put(0,0){\line(1,2){2}} \put(2,4){\line(0,1){11}} \put(2,15){\line(-1,0){1}} \multiput(-8,7.5)(0,5){2}{\line(1,0){1}} \put(-8,7.5){\line(0,1){5}} \fi } %tube outline \newcommand{\tout}[1]{ \ifnum#1=1 \put(0,5){\oval(12,12)[b]} \put(0,5){\oval(12,15)[t]} \fi \ifnum#1=2 \put(0,5){\oval(12,12)[b]} \put(0,8){\oval(12,15)[t]} \put(-6,5){\line(0,1){6}} \put(6,5){\line(0,1){6}} \fi \ifnum#1=3 \put(0,5){\oval(12,12)[b]} \put(0,13){\oval(12,15)[t]} \put(-6,5){\line(0,1){11}} \put(6,5){\line(0,1){11}} \fi } %%%heptode%%%%% \newcommand{\heptode}[3]{ \ifx#1Y \put(0,2){\focus} \put(0,2){\focus} \ifx#2Y \else \ifx#3Y %connection focus-grid \put(3,2){\conn{4}} \fi \fi \fi \ifx#2Y \put(0,2){\cathode} \fi \put(-4,7){\gr{5}} \put(-2.5,19.5){\anode} \ifx#3Y %connection cathode-grid, g2-g4 \put(3,2){\conn{3}} \fi \put(0,1){\tout{3}} } %%%tetrode%%%%%% \newcommand{\tetrode}[2]{ \ifx#1Y \put(0,2){\focus} \fi \ifx#2Y \put(0,2){\cathode} \fi \put(-4,7){\gr{2}} \put(-2.5,14.5){\anode} \put(0,1){\tout{2}} } %%%pentode%%%%%% \newcommand{\pentode}[3]{ \ifx#1Y \put(0,2){\focus} \ifx#2Y \else \ifx#3Y %connection focus-grid \put(3,2){\conn{2}} \fi \fi \fi \ifx#2Y \put(0,2){\cathode} \fi \ifx#3Y %connection cathode-grid \put(3,2){\conn{1}} \fi \put(-4,7){\gr{3}} \put(-2.5,14.5){\anode} \put(0,1){\tout{2}} } %%%triode%%%%%% \newcommand{\triode}[2]{ \ifx#1Y \put(0,2){\focus} \fi \ifx#2Y \put(0,2){\cathode} \fi \put(-4,7){\gr{1}} \put(-2.5,10){\anode} \put(0,1){\tout{1}} } %%%diode%%%%%% \newcommand{\diode}[2]{ \ifx#1Y \put(0,2){\focus} \fi \ifx#2Y \put(0,2){\cathode} \fi \put(-2.5,10){\anode} \put(0,1){\tout{1}} } \endinput