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Incandescent LED Circuit - This circuit when used with a 555 timer
will cause light emitting diodes to turn on and off more slowly. This
will make the LEDs appear similar to incandescent lamps….. [from Rob
Paisley's Model Train web site] |
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Incline Railway Circuit - The drawings and photos below are for an
operating incline railway that was built by the London Model Railroad Group
for its 'O' scale model railway club located at London, Ontario, Canada....
[from Rob Paisley's Model Train web site] |
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Infra Red Switch (Andy Collinson) - This is a single channel (on /
off) universal switch that may be used with any Infra Red remote control
using 36-38kHz.... |
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Infrared Detection - The following is a method to allow day and
night detection using Infrared/Visible light sensitive phototransistors and
a simple LM339 voltage comparator circuit. [from Rob Paisley's Model Train
web site] |
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Infrared Receiver Module Schematics - Some Information On Using Ir
Receiver Modules…. [from Rob Paisley's Model Train web site] |
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Infrared Toy Car Motor Controller - (electronic circuit added 4/05)
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| Infrared Transmitter for Locomotives -
(electronic circuit added 4/05) |
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Interlocked Monostable Timers - Uses the LM555 timer or its cousins with
other letter prefixes. There can be minor differences between 555 timer IC's from
different manufacturers but they all should be useable for any circuit.
Designed for Model Trains…. [from Rob Paisley's Model Train web site] |
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IR Proximity Detector - The circuits on this page are for an Infrared
Proximity Detector using the Vishay Electronics TSOP4830 "IR Receiver Modules for
Remote Control Systems"….Scroll down to view all the circuits…. [from Rob Paisley's
Model Train web site] |
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IR Receiver Modules for 37 to 58KHz - Some Information On Using Ir Receiver
Modules…. [from Rob Paisley's Model Train web site] |
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[_OLD-ads-dont_upload/OLD I-ADS from web/ad-djandassoc.htm] |
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Joy Stick Controlled Throttle information - This page presents a new version
of the 'Modernized "Toy" Throttle' circuit that is shown on the 'Various Transistor
Throttles' page at this site. This version was specifically design to be used by
a handicapped person and is controlled by a single axis joy stick that operates
microswitches at each end of its arc of travel. [from Rob Paisley's Model Train web
site] |
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L.M.R.G. Incline Railway System - The drawings and photos below are for an
operating incline railway that was built by the London Model Railroad Group for its
'O' scale model railway club located at London, Ontario, Canada. This is a
single car model loosely based on a double car incline that operated at Port Stanley,
Ontario. [from Rob Paisley's Model Train web site] |
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Laser Pointer Train Detector - This train detector makes use of hand held
laser pointer devices that are widely available to detect trains over long distances.
[from Rob Paisley's Model Train web site] |
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LED Bargraph Optical Tachometer - For the electric R/C enthusiast, a
tachometer can be a very useful piece of equipment. When I first built this tach back
in 1995, it was essential, as there were very few off-the-shelf electric R/C power
systems that just worked….. [Stefan Vorketter] |
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LED Out Circuits For Tortoise Switch Machines - Circuit for model railroad
trains…. [from Rob Paisley's Model Train web site] |
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LED Traffic Lights - The LED traffic Light circuit controls 6 LEDs (red,
yellow and green) for both north/south directions and east/west directions. The timing
sequence is generated using a CMOS 4017 decade counter and a 555 timer. Counter
outputs 1 through 4 are wire ORed using 4 diodes so that the (Red, North/South) and
(Green, East/West) LEDs will be on during....[Bill Bowden] |
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LED-Current Limiting Resistor Calculator - The calculators on this page can
be used to find current limiting resistors and currents for Light Emitting Diodes.
The first calculator determines the resistance for a desired LED current while the
second calculates the current for a given resistance. [from Rob Paisley's Model Train
web site] |
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LEGO® RCX Brick Rechargeable Battery Tester - The circuit on this page is
for a rechargeable battery tester using a LEGO® RCX Brick to gather voltage verses
time data and then upload the data to a PC using the ROBOLAB Software. [from Rob
Paisley's Model Train web site] |
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LEGO® RCX Brick Voltage Recorder - 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 [from Rob Paisley's Model Train
web site] |
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Level Crossing Lights - Every model railway has a place where road and rail
meet, and when it does, some form of warning is needed. Flashing lights work well, but
something is needed to drive them. And that is where this circuit comes in. All it
does is flash lights and it is so simple anyone could build it!....(design added
10/06) |
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Light Activated Detector Circuit (LM393/LM555) - This page shows three
circuits for using the 555 timer IC as a photocell controlled train detector.
The circuit is shown driving light emitting diodes but any load of less than 200
milliamps could be used…..Circuit for model railroad trains…. [from Rob Paisley's
Model Train web site] |
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Light Emitting Diode - Current Limiting Resistor Calculator - The
calculators on this page can be used to find current limiting resistors and currents
for Light Emitting Diodes. The first calculator determines the resistance for a
desired LED current while the second calculates the current for a given resistance.
[from Rob Paisley's Model Train web site] |
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Lights Control for Model Cars - ….must register on this site....[Published
in Elecktor July/August 2010] |
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LM311 Thermostat Circuits - Circuit for model railroad trains…. [from Rob
Paisley's Model Train web site] |
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LM3909 replacement information - This page features a replacement circuit
for the LM3909 LED Flasher / Oscillator. The replacement circuit uses discrete
components and is essentially the same as the internal circuit of the LM3909. [from
Rob Paisley's Model Train web site] |
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LM555 - Astable Oscillator Calculator + Capacitor Calculator - Uses the
LM555 timer or its cousins with other letter prefixes. There can be minor differences
between 555 timer IC's from different manufacturers but they all should be useable for
any circuit. Designed for Model Trains…. [from Rob Paisley's Model Train
web site] |
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LM555 - Monostable Oscillator Calculator - Uses the LM555 timer or its
cousins with other letter prefixes. There can be minor differences between 555 timer
IC's from different manufacturers but they all should be useable for any circuit.
Designed for Model Trains…. [from Rob Paisley's Model Train web site] |
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LM555 LED Blinker Circuits - The circuit uses independent timers to flash
two light emitting diodes. Any time that light emitting diode D1 is lit__light
emitting diode D2 will be switched off. Light emitting diode D3 is on if both D1 and
D2 are off....Circuit for model railroad trains…. [from Rob Paisley's Model Train web
site] |
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LM555 Timers - Circuits and Calculators - Circuit for model railroad
trains…. [from Rob Paisley's Model Train web site] |
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LM556 Timers with Complimentary or Push-Pull Outputs - Uses the LM555 timer
or its cousins with other letter prefixes. There can be minor differences between 555
timer IC's from different manufacturers but they all should be useable for any
circuit. Designed for Model Trains…. [from Rob Paisley's Model Train web
site] |
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Low Battery Voltage Cutout Circuits - Circuit for model railroad trains….
[from Rob Paisley's Model Train web site] |
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Low Cost Thermal Peak Detection Charger - The electric model aircraft and
car industries have produced a bewildering array of field chargers for NiCd motor
battery packs. These range from simple 6 or 7 cell chargers consisting of a resistor
and mechanical timer, to more complex chargers with peak detection, cycling, and the
ability....[Stefan Vorketter] |
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Low Power Crossing Light Flashers - The following are Low Power - Grade
Crossing Flasher circuits based on the LM555 and LM556 timer chips. They are designed
to drive Light Emitting Diodes but could be used to drive low current incandesent
lamps….. [from Rob Paisley's Model Train web site] |
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