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Catalog Number 1952.099.006
Object Name Condenser, Variable
Description Variable Condenser. Wood, glass, metal, and polished rubber top. Top features a gauge with an arrow and dial. The dial reads from left to right with hash marks, 150 - 0 in increments of five. A brass tag above the dial reads "Electrical Instruments MFD. by Thos. E. Clark, Detroit, Mich." Top also features handle and two electro-magnetic nodes along with a central shaft which states "Clark System Patent Pending." Body is made of a cylinder of glass which encases 15 moveable polished aluminum plates. As the plates revolved, they changed the size or capacity of the condenser. Nickel-plated rods hold the top and bottom together. Bottom consists of a graduated round wood base.

Used for testing purposes in 1903.
Collection Communication/Radio/Television
Date 1898
Dimensions H-7.25 Dia-12.25 inches
Material Glass/Metal/Rubber/Wood
People Clark, Thomas E.
Relations Show Related Records...
Search Terms Communication Devices
Tecla Company, Incorporated