Leyden Jar
Historical document, translated for reference. It reflects medical knowledge of the 1920s–30s and is not medical advice.
Summary
The Leyden jar is a classical electrical capacitor formed by a glass jar coated inside and out with tinfoil. It is capable of withstanding very high voltages without breakdown and is used in various medical and electrophysiological devices such as static machines.
Encyclopedia entry (1928–1936)
LEYDEN JAR, one of the most widespread electrical capacitors. It is a glass jar coated on the inside and outside with tinfoil. The inner coating is directly connected to a metal rod ending in a sphere. Since glass serves as the insulator in the Leyden jar, it withstands very high voltages without breakdown, although its capacitance is small. To obtain a larger capacitance, Leyden jars are connected in parallel into batteries. Leyden jars are part of many medical and electrophysiological devices (such as the static machine).
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“Leyden Jar.” Soviet Medical Encyclopedia. English translation of Bolshaya Meditsinskaya Entsiklopediya, 1st ed. (Moscow, 1928–1936), ed. N. A. Semashko. https://sovietmedicalencyclopedia.pages.dev/article/leyden-jar/