Do you have old dual variable resistor (e.g., type SP-P to the same flawed)? Do not rush to throw it away. It is, in fact, the ideal mounting site for homemade sconces, floor lamps, table lamps, chandeliers of various designs. Sleeve 1 (see Fig.) is perfectly suited, it turns out, when installing the cartridge in svetilnik: she tightened nakrepko secret 2, under which is placed a washer 3. And if you also want zakrepit cartridge for trouble-rack (say, a lamp), and a hollow axle 4. As an adapter,of course. E. SAWICKI, Korosten
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