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Keystone Transforer Company F30-F40T12 Rapid start ballast87 viewsdieselducy
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Comparing stock VS ballast with Modified ballast50 viewsdieselducy
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Measurement to make a VS ballast fit a 4 watt mini strip43 viewsdieselducy
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Electromatic Industries F30 Ballast63 viewsdieselducy
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Switch and cord setup on F13T8 fixture34 viewsdieselducy
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New Switch on my 12w Preheat Light42 viewsdieselducy
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