Welcome to Magpie Computer Development's Locomotive Accessory Section, where you will find information about the following products:

Ammeter
Speedometer
Rev Counter
Regen-Braking Ammeter
Sound System
Smoke Generator

Link to Magpie Computer Developments Home Page

Important Notice

As a result of the Increase in the Standard Rate of VAT from 17.5% to 20%, on the 4th January 2011, the price of all products (EXCEPT the Sound Unit) will increase for all orders placed on or after that date.
We will absorb the increase for the Sound Unit, which will remain unchanged at £295. For other items, the new prices are shown in brackets alongside the current price.

Traction Current Meter
Standard Features:


Displays Battery Current  to 100 Amps
Uses Hall-effect Transducer mounted inside the Locomotive.
Current Sensing is independent of Battery Voltage
Easy to Install - no need to cut any Battery leads
Safe to use - no Electrical Connection to High Currents
Gives you a 'feel' of  Power  being developed
Quality Moving-Coil Meter - 70 mm x 60 mm
Can be set to sense only the Current used for Traction,
     or Total Current (including Accessories)
Dual-microprocessor technology ensures reliability
Reverse Polarity protected
Other ranges available - from 50 to 600 Amps!

Speedometer
Standard Features:

Indicates Actual Speed up to 10 MPH
Quality Moving-Coil Meter - 70 mm x 60 mm
Works from magnetic Wheel Sensor (supplied)
Multi-function configuration button
Easy entry / display of Wheel diameter
Adjustable Over-Speed Indicator - illuminates when pre-set speed is exceeded
Odometer Function (up to 99.99 miles recorded)
Accommodates Wheel diameters from 1 to 9.999"
Can be run from a 9V PP3 / MN1604 / 6LR61 battery -  run it from your Driving Truck wheels - useful for Steam Locos
                                      Alternative Options
Odometer recording up to 999.9 miles
Wheel diameters from 10 to 99.99"
                                      Extra Cost Options
Wheel-slip Indication Function (requires additional Sensor)
Relay that closes when speed is above Over-Speed Setting, or
Relay that closes when vehicle is moving
Other calibrations or Metric Scales  - ask for details

Get Documentation

Get Documentation

Price: £49 (£50) each

Get Documentation

Get Documentation

Rev Counter

Useful when you have a Petrol or Diesel powered Locomotive
Non-contact Optical Shaft-speed detector
Other scales available

Dual Function Ammeter

Useful with Battery Loco's employing Re-generative Braking
See how much you're putting back into the Batteries when Stopping
Other Scales available

Digital Sound System 1
Features:

5 Sound Sequences from 4 Switch Inputs:
  Engine Start-up Sequence
  Engine Shut-down Sequence
  Low Horn (Continuous)
  High Horn (Continuous)
  Two Tone Horn
Universal 12V Operation
Engine Sound synchronised to Loco Speed
Straightforward Installation
40W Amplifier and Speaker Included
Opto-isolated Locomotive Speed-sensing system.
Suitable for use in any Battery-powered locomotive
Uses existing Control handset
Pre-programmed with Loco sounds to order.

Digital Sound Samples provided by, and copyright of,
South West Digital Ltd
See their web-site for available Loco Sounds (External Link)
(Choose SWD Sound Projects from their menu)

Get Documentation

Price: £295 (£295)


Exhaust Smoke Generator for Battery Electric Diesel Locos
Features:

  • Smoke generator, purpose-built for 5" & 7 1/4" Gauge Models
  • Synchronised to Loco Movements  and Sound System (if fitted)
  • 24V operation
  • Uses readily available Disco 'smoke' Fluid
  • Smoke is generated by heating the fluid, and ejected by a Fan
  • Two Exhaust Patterns - 'Clag' and Idling
  • Patterns are produced by setting the Heater power and Fan speed
  • Exhaust Patterns can be user-adjusted  if required
  • Opto-isolated Locomotive Speed-sensing system.
  • Suitable for use in any Battery-powered locomotive
  • Generator Unit (120 mm L x 65 mm W x 60 mm D) contains powerful Fan, with two 15 mm exhaust stubs, that you 'plumb' to your exhaust ports using standard 15 mm or 22 mm plastic plumbing fittings

Sorry, but this item is
Temporarily Unavailable due to Component Supply Problems

Price: £95 (£???)

Get Documentation

See it in action here:

The Bare unit on test, at Full Power

Installed in a Class 31 Loco