Maico Stethetron, an electronic stethoscope. The chrome stethoscope plate attaches by wire to a battery pack. A light blue paper package contains an extra plug. A red paper instruction sheet reads (on front) "Heart and chest sounds 10,000 times louder with the tiny new Maico Stethetron, worlds smallest electronic stethoscope." The pack measures 11 cm x 4 cm x 2.2 cm. Provenance is unknown.
ca. 1940's
Digital photograph of the Maico Stethetron, an electronic stethoscope. The stethoscope is shown on a blue background, with the battery pack open to reveal the contents. Also shown are a light blue paper package containing an extra plug and the red paper instruction sheet, with cover text reading "Heart and chest sounds 10,000 times louder with the tiny new Maico Stethetron, worlds smallest electronic stethoscope."
Medical Museum Collection, Box 1A