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Tortoise Wiring/LED Clinic
By Bob Cochran
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Overview of what will be covered
• 1. How to wire toggle switches, LED’s and frog on a turnout.
• 2. Material used.
• 3. Offset mounting/dual control
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Methods of providing changeable polarity DC
• 1. DPDT Switches
• 2. Bi-Polar DC wit SPDT Switches
• 3. AC with Steering Diodes
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BI-Polar DC
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AC with Steering Diodes
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Panel lights/Signals
• Can use 1 each red and green LED
– Green in normal route
– Red in diverting route
• One Bi Color LED green/red
– In the normal route
– Have to use 2 single LED’s or 1 Bi Color LED if you are going to use Led’s
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Frog Wiring
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Materials Used
• 2 AC to DC Adapters with 12vdc 500ma output
• 1 SPDT Toggle Switch
• BI-Color LED 3mm or 5mm
• 22AWG Stranded wire
• Terminal Boards
• Crimp on spade connectors
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Sources for Parts
• Mouser
• Digi-Key
• All Electronics
• Jameco
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Additional Reading
• One Turnout Two Controls MR July 2002
• Route Control for Slow motion Motors
• MR Nov. 2000
• Tortoise Tips MR Feb. 2000
• Kalmbach – DCC Projects
– Easy Model Railroad Wiring
– Basic Electricity & Electronics for Model Railroaders
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