IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. crate: 40 in x 12 1/2 in x 12 1/2 in; ...
A half-wave mercury vapor rectifier (also called a high vacuum diode). Four-pin base with metal shell, ceramic insulator. Top contact. Mercury specks inside unit. Printed on base: "JAN-CAGC-872A / ...
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