Noise is an annoying but unavoidable part of any engineering project. Fixing noise issues is hard enough, but even just measuring how much noise an amplifier adds to your signal is tricky without ...
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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