vintage 'NOS' Ster-O-Matic Model EC-102 Silver Purifier Electrolytic Cell - a 'patented' Negus Electronic Flocculator for small scale electroflocculation of water -- used to electronically sterilize or purify water of biological contaminants / pollutants -- the electrode is a composite of graphite and metal, including silver and likely copper -- any additional information about this item would be appreciated -- -- an identical unit was used for the electrolytic formation of silver electrolyte as a fungicide for a 1963 OSU thesis: two of the above photos are from the thesis - this is a short abstract from it:"An electrolytic cell manufactured by the Ster -O -Matic Corporation was used as another source of silver ions for fungitoxicity assays and for plant disease control tests. The cell is composed of a cast metal pot surrounding a silver [only] electrode [not the one with this unit]. The positive side of a 6 -volt, 3- ampere direct current power supply was attached to the silver electrode; the negative side was attached to the metal pot (Figure 1). A silver electrode was substituted for the usual poly-electrode composed of several other metals (Figure 2) [what this unit has]. Therefore, silver was the only metal discharged. Distilled water (750 ml) was placed in the cell, and the current was switched on for ten minutes. During this period silver ions were released into the water from the silver electrode." --
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-- this is a vintage item with slight wear but appears to be unused --
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