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selengleichrichter with plastic interlayer between selenium and gegenelektrode
selengleichrichter with plastic interlayer between selenium and gegenelektrode
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机译:硒和gegenelektrode之间具有塑料夹层的selengleichrichter
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摘要
A selenium rectifier has a barrier layer between the selenium and the counter electrode consisting of a polyamide. The layer is derived from a lacquer solution which is deposited on the selenium and comprises 4-7 per cent. nylon, 65-75 per cent. isopropyl alcohol, 10-16 per cent. water and 7-12 per cent. furfuryl alcohol which is mixed with a carrier comprising 1 1/2 -4a1/2 parts (by volume) of alcohol with 1/2 to 1 1/2 parts of nitro-methane. Ammonium hydroxide is then added to the mixture to adjust the pH value to approximately 7. The completed rectifier may be subjected to an electroforming treatment.
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