32 lines
899 B
TeX
32 lines
899 B
TeX
% Author: Prof. Dr. Matthias Jung, DL9MJ
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% Year: 2026
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\begin{circuitikz}
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\draw (0,0)
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to [short, o-] ++(1,0) coordinate(l1)
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to [short] ++(1,0) coordinate(x1)
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to [stroke led] ++(0,-2)
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to [short] ++(-1,0) coordinate(l2)
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to [short, -o] ++(-1,0);
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\draw(x1)
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to [open] ++(2,0) coordinate(x2)
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to [short] ++(1,0) coordinate(r1)
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to [short, -o] ++(1,0);
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\draw(x2)
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to [open, name={trans}] ++(0,-2) coordinate(x3)
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to [short] ++(1,0) coordinate(r2)
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to [short, -o] ++(1,0);
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\draw(trans.center) node[npn,photo](t1){};
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\draw(t1.C) to [short] (x2);
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\draw(t1.E) to [short] (x3);
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%
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\draw[dashed, gray] (l1)
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-- ++(0,0.5) coordinate(h)
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-- (h-|r1)
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-- (r1)
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-- (r2)
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-- ++(0,-0.5) coordinate(h)
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-- (h-|l2)
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-- (l2)
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-- (l1);
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\end{circuitikz}
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