Glass Envelopes

Glass envelopes for vacuum tubes.

Handmade Vacuum Tube Envelope, Soda-Lime Glass, 30mm Dia. x 8cm Long

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 stem (tube and slot shapes are...
$64.58
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Handmade Vacuum Tube Stem Blank, Soda-Lime Glass, 30mm x 18mm Tube

Handmade Vacuum Tube Stem Blank, Soda-Lime Glass, 30mm x 18mm Tube

Glass vacuum-tube stem blank, formed by centrifugation and annealed. Also available in low-profile slot shape. To use,...
$25.83
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Handmade Vacuum Tube Stem Blank, Soda-Lime Glass, 30mm x 20mm Slot

Handmade Vacuum Tube Stem Blank, Soda-Lime Glass, 30mm x 20mm Slot

Glass vacuum-tube stem blank, formed centrifugally, pressed to a slot shape, ground to length and annealed. Also...
$32.29
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