Vintage lot 7 white porcelain knobs electrical insulators great hat hooks.
Vintage ceramic insulators.
25 pk vintage antique ceramic knob and tube electrical insulators white porcelain.
They are made from glass porcelain or composite polymer materials nonconductive materials.
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5 out of 5 stars 1 135 1 135 reviews.
Vintage insulators are most commonly made out of porcelain or glass materials and they come in a wide variety of colors and shapes making each item a unique piece that can make a great addition to a collection.
25 pk vintage 39 95.
Insulators were originally designed to keep the wires linking telegraphs and telephones insulated from the wooden poles that held them aloft.
Cool glazed ceramic vintage insulators for steampunk designers.
This is a very heavy vintage piece.
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Vintage glass insulators were first produced in the 1850s for telegraph lines then for telephone and power transmission lines.
In north america glass was always the predominate material for communications insulators but porcelain has become the standard for power distribution due to its greater strength and surface resistance.
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They insulated and protected the wooden poles from the electricity coursing through the wires.
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Shop for and learn about vintage glass insulators.
Collecting insulators is a fun and unique hobby that will allow you to learn much about the history and make of these unique objects.
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5 out of 5 stars 6 6 reviews 14 00 free shipping favorite add to rare corner insulator porcelain heavy glaze finish.
Similar to their glass counterparts porcelain insulators date back to before the civil war for telegraph wires.