An Elementary Handbook for the Use of Amateurs and Students. By PERCIYAL MARSHALL, A.I.M.E-
I. - The Theory of the Accumulator. II. - How to make a 4-Volt Pocket Accumulator. III. - How to make a 32-Ampere-Hour Accumulator. IV. - Types of Small Accumulators, V. - Hew to Charge and Use Accumulate rs.
80 Pages, 40 Illus., 12mo, Cloth, 50c.
By NORMAN HUGHES.
Contents of Chapters.
Some electrical considerations: I. - Introductory II. - Construction. III. - Lines, Indoor Lines. IV. - Signalling Apparatus. V. - Batteries. Open Circuit Batteries. Closed Circuit Batteries. VI. - Practical Operations. Circuit with Magneto Bells and Lightning Arresters. How to test the Line. Push-Button Magneto Circuit. Two Stations with Battery Bells. VII. - Battery Telephone. Battery Telephone Circuit. Three Instruments on one line. VIII. - General remarks. Index.
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