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.

Longueur • Length • Länge : 176 mm • 6" 7/8

Le contenu de ce site est sous copyleft
The content of this site is under copyleft
Der Inhalt dieser Website steht unter Copyleft