High purity Hydrogen gas ampoule, purity 99.9993%
sealed in boro silicate ampoule under vacuum.
Size: length 45-50mm, dia. ~11mm
This ampoule was especially made for  experiments with high voltage. Normal Hydrogen ampoules do not illuminate!
On the picture you see the illuminated ampoule. Connected to a 2000V/35kHz transformer via two aluminum adhesives. The transformers can be obtained here!
