3 1/4" X 3 3/8" (82mm X 88mm)
No markings
Picture courtesy Elton Gish |
U-304: USA
3 1/4" X 3 3/8" (82mm X 88mm)
No markings
Picture courtesy Elton Gish |
U number assignment by Elton Gish. Note this insulator has an extended inner skirt not seen in the photo.
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