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Identifications: Controllers:
Aurora Thunderjet Computrac

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Aurora Model Motoring Computrac Controller

_____Aurora HO Scale Slot Car Controller_____

The Computrac controller was designed to provide an optional Computrac Driver or pre-post tuneup comparison testing.   The knob on the left controls speed on "Straights" while the knob on the right controls speed on "Curves".   A slide switch between the two knobs allows selection of either 2 driver or 1 + Computrac driver.

The wiring is A+A are hand controller one.   B+B are hand controller two.
1, 2, 3, and 4 connect to primary Computrac terminal screws 1, 2, 3, and 4 respectively.
X+Y are for transformer + and - connections

This controller is a common ground system so do not use reversing controllers with this system.

This controller requires additional track sections to be added in strategic places around your layout.

Top side of Primary Computrac Terminal Track.
Hard to see but there is a small gap in the far rail.

Underside of Primary Computrac Terminal Track.

  Screw 4 is common ground strap connected to first and third rails.
  Screw 3 is either Straightaway or Curve speed connected to half of the fourth rail.
  Screw 2 is either Straightaway or Curve speed connected to half of the fourth rail.
  Screw 1 is manual driver positive connected to second rail.

Top side of Auxiliary Computrac Terminal Track.
Hard to see but there is a small gap in the far rail.

Underside of Auxiliary Computrac Terminal Track.

  Screw 1 is either Straightaway or Curve speed connected to half of the fourth rail.
  Screw 2 is either Straightaway or Curve speed connected to half of the fourth rail.

Either screws can be used to pick up "Straightaway/Curve" power from the rail or provide "Straightaway/Curve" power to the rail.

Record Sheet.

Close-Up of Computrac terminal screw connections.

Overview of the set it came in and how it is wired in a layout.
Click here or image above for larger view.


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