A Kolbe electroscope Max Kohl A.G. Chemnitz.

A Kolbe electroscope Max Kohl A.G. Chemnitz.

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A Kolbe electroscope Max Kohl A.G. Chemnitz.

Circa

ca 100 years old

Maker

Max Kohl

Country of manufacture

Germany

Categories: Scientific, Technology, Physics & Chemistry, Engineering antiques, Office Antiques, Other Technology Antiques

Description

A Kolbe electroscope employs a single leaf- The leaf was usually aluminium, The metal components of the case were painted black in order to eliminate bothersome reflections of light. The four vertical sides of the case are glass while the top and bottom are sheet metal. The two glass sides that are not in view are covered on the inside with a metal screen to prevent static charges on the glass or nearby objects from affecting the movement of the leaf. The brass knob on the left end of the wooden base is used to level the electroscope and the connector on the right end is used to ground the case. The insulator that separates the vertical support rod from the metal top of the case appears to be quartz.

The maker’s name is printed on the top of the case: Max Kohl A.G. Chemnitz.

Height 24 cm , the price includes careful packing and registered post.

 

 

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NL Early Science

Early Science antiques was founded in 1978 by Fred de Vree based in the Netherlands where I can also be visited by appointment. I have been active for 4 decades as an antiqair and auctioneer, the last 20 years of which are specialized in scientific antiques. I visit collectors and fairs in many European countries. looking for special items please feel free to contact me by Phone or email ,if you need any information on my listed items or something you are looking for 0031653132842 [email protected]

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