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Description: | SPINDLER & HOYER Werkstatte fur Prazisionsmechanik, Gottingen. (Embossed on makers trade plate. 3012 (serial number branded in the wooden base MANU Spindler & Hoyer early 20th century Gottingen, Germany. This ais a variable D.C. light source very precisely controlled by switching off one or the other of the lamps and by altering the value of the ballast resistance, which is in the form of a continuous rheostat. It was designed for use in conjunction with a photometer or an adaptometer see GLAHM 129191 | License: | http://www.hmag.gla.ac.uk/spirit/rights/ | Publisher: | Hunterian Museum and Art Gallery, University of Glasgow | Rights holder: | Hunterian Museum and Art Gallery, University of Glasgow | Subjects: | SCIENTIFIC COLLECTION : | Source: | Hunterian Museum | Creator: | Hunterian Museum and Art Gallery, University of Glasgow | Identifier: | http://www.huntsearch.gla.ac.uk/cgi-bin/... | Language: | en-GB | Go to resource |
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