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Electrical Handbook for Model Railroads Vol 1 Basic Electrical Concepts Mallory
Electrical Handbook for Model Railroads Volume 1 Basic Electrical Concepts by Paul Mallery
Soft Cover
Copyright 1998 THIRD edition
64 pages
CONTENTS
Chapter 1, Basic Electricity
Voltage, Resistance, Current, Power Page 4
Chapter 2, Electrical Devices
Switches, Resistors, LEDs, Fuses, Circuit Breakers, Meters, Transformers, Capacitors, Diodes, Transistors, Relays, Integrated Circuits Page 9
Chapter 3, Motors
DC, AC Page 20
Chapter 4, Power Sources
Transformers, Rectifiers, Protection, Mounting, Meters, Filters Page 23
Chapter 5, Locomotive Control
Direction, Speed, Pulse Power, Dirt Button, Protection Page 28
Chapter 6, Common Rail
Description, Advantages Page 34
Chapter 7, Turnouts and Special Work
Power Feed, Switch Contacts, 3-Way Switches, Slip Switches, Crossings Page 38
Chapter 8, Track Sections
Purpose, Size, Designation, Gaps, Section Breaks, Block Joints, X-Sections Page 45
Chapter 9, Basic Cab Control
Principal, Simple 2-Cab System Page 52
Chapter 10, Reversing Loops and Wyes
Problems, Bridge Rectifier, X-Section Page 56
Wire Table
Gage, Diameter, Resistance Page 59
Schematic Symbols
Conductors, Devices Page 59
Ratings of Resistors and Capacitors
Color Code, Standard Values Page 62
Alphabetical Index Page 62
This two-volume Handbook is intended as a reference manual of electrical information required by model railroaders. Volume I contains basic information needed on all layouts (such as Ohm's Law). Explanations of how individual electrical devices (such as transistors) operate are included in Vol. I. Volume II, although encompassing more basic information, primarily covers advanced aspects of the hobby, for example, signals and independent control of several locomotives. Emphasis in both volumes is heavily on methods which have proven effective, particularly those widely used. Special attention has been given to reliability. The first edition of this Electrical Handbook, 1955, covered all aspects, basic and advanced, in one volume and is counted as the first edition of both Vol. I and Vol. II. Because basics change more slowly than advanced subjects, in 1971 these two general areas were split apart primarily as a matter of economy to readers.
Although basics remain virtually unchanged over years, not so means of implementation. Selenium rectifiers took over completely for model RR DC power sources shortly after World War II but now have disappeared. Relays, once the backbone of logic circuits and detection on layouts, have been replaced in large measure by transistors and integrated circuits. The same is true of rheostats for speed control.
There are extensive cross-references by page number within Volume I and by figure number, chapter, or section to Volume II. References to Volume II will remain valid for any future edition of Volume II. The alphabetical index contained in this volume does not cover Volume II.
In the interest of preserving some history of the hobby and to give credit where credit is due, the earliest known publication or demonstration of an advance of an electrical nature in model railroading is cited. If any reader knows of an earlier reference, the author would appreciate being so informed. In the case of The Model RR Club, Inc., Union, NJ, any reference prior to 1972 uses its original name, Summit-New Providence HO RR Club. There are two major reasons why there are so many references to it in comparison with other clubs. One: The author has been able to observe their efforts on two different layouts starting in 1949. Two: Failures as well as successes can be reported.
Although a discussion of basic electricity seldom becomes involved in model versus prototype practice, when it does the assumption is made the prime objective of model railroaders is to duplicate appearance and operation of real railroads in the simplest, most effective, and least-expensive way feasible. For example model track circuits detect only cars and locomotives within a block, they do not guard against broken rails. Because language has a prototype too, railroad practice is followed whenever applicable rather than model aberrations. Nevertheless the latter are referenced.
All pictures are of the actual item. If this is a railroad item, this material is obsolete and no longer in use by the railroad. Please email with questions. Publishers of Train Shed Cyclopedias and Stephans Railroad Directories. Large inventory of railroad books and magazines. Thank you for buying from us.
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