Robertson ElectroMagnetic Fluorescent Light Ballast SP48 New

Description

Please note: I will be out of town 25 December thru 2 January 2023 and will not be able to ship any purchases. I apologize in advance for any inconvenience and will ship any sold items as quickly as I can after my return. Thank you.
Selling a new, never installed or used, Robertson electromagnetic fluorescent light ballast number SP48. Made in the USA by the Robertson Transformer Company of Blue Island Illinois. It is used with any of the following single bulbs – F4T5, F6T5, and F8T5. Generally used in vintage, older style clocks and signs that used a single fluorescent bulb for illumination.
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