and roof pieces into one assembly before installing onto the building.
The kit is easy enough to build that a novice to craftsman kits can easily com- plete the model, while fully capturing the lines of the prototype. The review model was finished in a variation of Maine Central’s standard transition era gray and dark green paint scheme and placed on a scenicked plywood base. The model will be used as a transfer facility between standard gauge and 30” narrow gauge on an On30 modular layout; how- ever, this is only one of the many uses for which the freight house could be used.
Creative Laser Design once again has nicely captured the lines of a prototype structure in several scales that is easily built and value to the modeler. The addi- tion of additional details, vehicles and figures to the model will allow the builder to create a center piece on their layout. The retail price of the O scale Bartlett freight house is $124.95. This kit is also available in N, HO and S scales.—GEORGE RILEY
Prodigy Elite 10 amp. DCC system: All scales
field
Model Rectifier Corporation, 80 New- Ave.,
Edison,
www.modelrectifier.com.
Model Rectifier has recently released a new system in their Prodigy line of DCC control systems. The new Prodigy Elite shares many of the features found on the Prodigy
Advance
“squared” and Prodigy Wireless sys- tems, but includes a much larger 10- amp power supply.
The power supply traditionally used in model railroad power supplies is classified as a linear power supply. In
NJ 08837:
linear power supply, all of the power must first pass through a transformer stage to reduce the incoming voltage from 120 volts to about 16 volts, and then a rectifier stage to convert the a.c. to d.c. The higher the capacity of the linear power supply, the bigger the transformer,
rectifiers, heat sinks have to be.
The Prodigy Elite uses a switching mode power supply, the same kind used in most personal computers. Very simply,
switching power supplies
switch incoming power on and off at very high frequencies. This provides control of the amount of power being processed by the power supply, and al- lows the use of much smaller and lighter transformers since transformer size is inversely proportional to fre- quency. The entire 10-amp Elite power supply tips the scale at just 15.8 ounces, which is less than the weight of the transformer alone in a 2-amp con- ventional power pack.
Another benefit is that switching power supplies are very efficient, with much less of the incoming power being wasted as heat. The Elite switching power supply can accept either 120 or 240 line voltage at either 50 or 60 Hz. without the need for a selector switch. As a result, the Prodigy Elite can be used for multiple twin-motored G gauge locomotives, several two rail O scale locos, and for large or club-sized HO and N scale pikes. The system is also suitable for smaller layouts, espe- cially if there are plans for future ex- pansion. The Elite allows the maxi- mum current to be set in steps from 1 to 10 amps (think of it as having an ad- justable circuit breaker). This is impor- tant for smaller layouts or only having
and rectifier
ALLEN KELLER Videos
GREAT MODEL RAILROADS VOLS. 1-67
Order On-Line Complete Listing at:
1946 Grand Canyon Limited HO Scale
www.allenkeller.com Santa Fe
The Coach Yard
www.thecoachyard.com Committed to Excellence
www.modeltrainfair.com
PLASTRUCT’s 152 Page, Full Color, VOL 9 Catalog has over 4500 scratch model building Products. To order send $5.00 ($7.00 International) or online at:
www.plastruct.com
1020 South Wallace Place, Dept. RMC07 City of Industry, CA 91748
RAILROAD MODEL CRAFTSMAN 85
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