Geissler tube with a large central spiral
Tube de Geissler
Geißlerröhre
Sadly, the vacuum is lost due to minor cracks between the sealing and the connection wires.
![Geissler tube, Geißlerröhre](gt006a.jpg)
Longueur • Length • Länge : 176 mm • 6" 7/8
![Geissler tube, Geißlerröhre](gt006c.jpg)
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Der Inhalt dieser Website steht unter Copyleft