Glass envelopes for vacuum tubes.
Catalog
Handmade Vacuum Tube Envelope, Soda-Lime Glass, 30mm Dia. x 8cm Long
Glass vacuum-tube envelope, 30mm OD to 7mm OD exhaust. Fuse against a matching...
Handmade Vacuum Tube Stem Blank, Soda-Lime Glass, 30mm x 18mm Tube
Glass vacuum-tube stem blank, formed by centrifugation and annealed. Also...
Handmade Vacuum Tube Stem Blank, Soda-Lime Glass, 30mm x 20mm Slot
Glass vacuum-tube stem blank, formed centrifugally, pressed to a slot shape,...