Physics of the electron
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555604 8
Pair of Helmholtz coils
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555629 4
Cross grating, 5000/cm, rotatable
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555300 8
Braun tube with holder
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555302 8
Braun tube
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45113
Balmer lamp
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45141
Balmer lamp, deuterated
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451141 8
Power supply unit for Balmer lamp
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