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Toggle Switch Control information - These circuits allow an ON-ON type DPDT toggle
switch to control a twin coil switch machine motor. The handle of switch can then be
used to indicate the route selected. The circuits are also able to control LEDs that
could be used to indicate the selected route....(electronic circuit added 7/03) |
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Traffic Light 2 (Jose Pino) - A two-way Traffic light using a PIC 12F629. As
bonus, a traffic light that doesn't use a PIC is included. (electronic schematic added
0503//04) |
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Traffic Light Control Circuit (20 Output Sequencing Circuit) - This page features
a circuit that has twenty open collector outputs that turn on one at a time in a
continuous sequential manner. The circuit make use of the 74LSxx family of TTL
integrated logic devices. The circuits…(added 7/03) |
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Traffic Light Controller - controls on3 LED traffic light sequence (added 4/05) |
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Train Detector using Ambient Light & a Photocell - (electronic circuit added 4/05) |
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Transformer Type-DCC Block Occupancy Detectors - In these circuits a transformer
is used to isolate the detector circuitry from the track power circuit. The circuits
have been designed to use a minimum of parts and to take their operating power from an
external power source supply….(added 05/08) |
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Transistor throttles - power supplies, direct current power supply, voltage
comparator, variable pulse with modulated power supply, current regulated power supply
circuit |
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Tunnel Stretcher - Do you find your tunnels a bit short? Does the train pop out of
the far end moments after the last coach disappears from view? This module will
automatically add some time to the train's trip through the tunnel. It can also be
used to control signals at stations, making a train wait for a predetermined time
before letting it continue....(design added 05/05) |
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Turnout Anti Derail Protection - (electronic circuit added 7/03) |
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Turnout Anti-Derail Protection - The circuits presented here will prevent turnouts
from being thrown while a train is on a switch, ideal where the switch cannot be seen
by the operator. They use phototransistor sensors to detect the train and have a short
time delay to compensate for gaps between cars. The circuit can also be used to
protect crossovers and ladder tracks with the addition of more sensors....(added
06/07/08) |
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Twin Coil Switch Machine Automatic Reversing Loop Circuits - (electronic circuit
added 7/03) |
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Twin Coil Switch Machine-Automatic Reversing Loop Circuits - This page is about
automatic reversing loop switch machine control circuits for twin coil type switch
motors. The first switch machine controller is very basic. More complicated circuits
follow…(circuit added 06/07/08) |
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Two Wire Throttle Control System - (electronic circuit added 7/03) |
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Two-Tone Train Horn - With this circuit you can electronically simulate the noise
of a diesel-train horn. The sound is triggered automatically as the train reaches a
desired place on the track so you can produce the sound as the train approaches
stations, level crossings, etc. The circuit can be built simply by using one 556 or
two 555 timers. The rest of the parts are readily available and not critical. The
output...(Tony van Roon's schematic / circuit added 2/07) |
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Various Transistor Throttle Circuits - (electronic circuit added 7/03) |
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Visible Light Blocking Filter - This isn’t an electronic circuit but the drawing
below shows the curve for an optical filter made from exposed color film. The material
blocks most visible light but is very transparent to 880nM infrared light. Kodak
100ASA is exposed to "cool white" fluorescent light for about 5 seconds. ….(designed
by David A. Johnson) |
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Visible Light Photo Detector Circuits E+F - (electronic circuit added 7/03) |
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Voltage Doubler Input DCC Only Block Occupancy Detector - (electronic circuit
added 7/03) |
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Voltage Recorder information - The images shown on this page show circuits that
can used to measure and record with a LEGO® RCX Brick that comes with the LEGO®
MINDSTORMS and LEGO® ROBOLAB robotics sets…(electronic design added 06/07/08) |
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VT-5-DCC Block Occupancy Detector - (schematic added 05/08) |
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Wire Coat Hanger Cable Guides (E+F) - Here is a way to use old wire coat hangers
to make simple and efficient wiring harness guides that can help keep your layout
wiring neat and tangle free…(design idea added 05/08) |
