||Hayden, Joseph W; The nature of this invention" is directed to
an electrical power source for slot cars. What is new in this
invention is the introduction of an adjustable regulated direct
current power supply over an existing fixed direct current power
supply. BACKGROUND AND FIELD OF THE INVENTION This invention
relates generally to a power supply used for model racing cars
(e.g., slot cars) that run on slot car tracks. More
particularly, it enables a hobbyist to fine-tune the direct
current voltage regulation by adjusting the voltage, therefore
compensating for voltage variation in the slot car's electric
motor and allowing the slot car to run both independently and in
conjunction with a controller. A power supply apparatus for slot
car racing tracks is known. Such a power supply generally
comprises one fixed power pack supplying the same amount of
power to each of the slot car track lanes. The fixed power pack
supplies power to the rails or braids referring to the
electrical pickups physically located on