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Tag Archives: Model-Railroading

Mikes Optical Timer Counter

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“This page is the result of a lot of effort over the past couple years to develop a quality, inexpensive device to test shutters on the classic film cameras that I have been using…” .. Mike

Mikes Optical Timer Counter

Once built, this counter timer/device is easily adapted to a wide variety of applications, simply by construction of a new sensor. Although designed to be used with photo-transistors, this device can also use relays, transistors and many other kinds of electrical switches as a sensor.

Mikes Optical Timer Counter

Other Projects

Model Railroading, 3 Transistor Audio Preamp for a Dynamic Microphone

Configuration and control of this counter/timer is through a RS232 port. Cable configuration for a usual PC compatible would consist of a null modem cable, with a female connector on the timer/counter end of the cable. The correct cable for a PC or usb to serial adapter with a DB-9 interface is listed in the bill of materials.

delabs Page Digital Timers Counters and Clocks 

OpenServo – Digital servo for Robotics

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OpenServo is an open community-based project started by Mike Thompson. Low-cost digital servo for robotics being the goal. New code and hardware.

OpenServo – Digital servo for Robotics

OpenServo - Digital servo for Robotics

Independent H-Bridge allowing for braking, Temperature sensor, 400khz I2C/TWI interface. – New Features

Some features:

  • High precision positioning
  • Advanced curve based motion profile engine
  • Open source design and software
  • Back EMF speed sensing
  • High speed 20MHZ design

Bakatronics – DIY Kits and Model Railroads

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Bakatronics LLC designs and manufactures innovative electronic circuits for model railroads. For the last decade Baka has been creating new ways to make your model railroads “come alive”.

Bakatronics – DIY Kits and Model Railroads

The Kits include the Lighthouse Flasher, Emergency Lights, Airport Beacon, Campfire and Super Welder Flash kits All are based on advance micro controller technology and will enhance any railroad.

Digital Temperature Controller

FK945 Digital Temperature Controller kit

This circuit can be used to control when an appliance or device turns on and off by temperature. 3 Digit Read Out and easy to set buttons.

Toy steam engines museum – Chesterfield

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Before Hams invented DIY Electronics and even before Electric Current gained any respectable position in the Manufacturing Community. The thing that was making many heads nod in unison, was Steam Engines.

Coal, Steel and then Steam Engines made the word Industrial Manufacturing very Meaningful.

Toy steam engines museum – Chesterfield

See some inspiring videos of The Steam Engines at Michael Stacey of Chesterfield. Here you will find models from Mamod, Hobbies, Meccano, Bowman, Wilesco, Maxwell Hemmens, Stuart, etc.

Wilesco Dampftraktor D405.

Wilesco Dampftraktor D405.

Miss England – Twin jet propelled speed boat, Made by Victory Industries Ltd Circa 1948.

Miss England - Twin jet propelled speed boat

Model Railroad Electronics – Rob Paisley

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Model Railroad Electronics – Rob Paisley

“Electronic circuits that are mostly for model railroads. Shown are designs that were developed to solve certain problems or achieve a desired control function. There are throttle, train detection, animation, control and general purpose circuits on this page.”

There are also some ideas for LEGO Brick

555 Timers pages of Rob Paisley

  • Soldering Leads To Phototransistors And LEDs
  • Voltage Comparators and OpAmps
  • Bad And Good Circuit Board Solder Joints