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Switch Book How to Fabricate ‘S” Gauge Switches 
Richard Reichard has created a detailed instruction manual that gives step by step instructions on "How to Fabricate 'S' Gauge Switches".
I have the publication and have outlined and sampled it here.  I hope you will find this helpfull in determining if this publication is something you want on your bookself. (Paul)

Index:
Project List
    Regular (30 degree) LH & RH Switches
    15 degree LH & RH Switches
    60 degree Wye Switch
    Terminal Switch (1 to 4)
    The Switch Machine
Introduction click here to see
Recommended Tools
Materials List
General Assembly Instructions  (44 steps) click here to see first 7 steps
Rough Blank Sizes for Switch Bases
Track Dimensions Used for Switches
Spring Contacts (detail)
Photo Section (Pictures of switches in various stages of completion)
Drawing section (Full size layout drawings of all switches) click here to see wye drawing
1 to 4 (Terminal) Switch
The Switch Machine
    Materials List
    Recommended Tools
Assembly Instructions for Switch Machine
Detail Drawings for Switch Machine click here to see a sample detail
Number and Letter Size of Drills (reference)
American National Taps & Dies (reference)

Order Information:
$18 (plus 2.50 postage)
Dick Reichard
326 W. Ensley Ave
Auburn, IN 46706
Email: rlraub at locl.net