Sylvania Experimental tube, ''Ribbon on cathode assy, coated''

Sylvania Experimental tube, “Ribbon on cathode assy, coated”
Tube expérimental
Versuchsröhre

Sylvania Experimental tube, Ribbon on cathode assy, coated

Hauteur • Height • Höhe : 69 mm • 2" 3/4
Diamètre • Diameter • Durchmesser : 20.5 mm • 13/16"

Sylvania Experimental tube, Ribbon on cathode assy, coated

Sylvania Ribbon on cathode assy, coated

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