The Radio Amateur's Hand Book

The Radio Amateur's Hand Book

The Radio Amateur's Hand Book - A Complete, Authentic and Informative Work on Wireless Telegraphy and Telephony...
$8.92 SGD
$17.85 SGD
$8.92 SGD
SKU: gb-6935-ebook
Product Type: Books
Please hurry! Only 10000 left in stock
Author: Collins, A. Frederick (Archie Frederick),1869-1952
Format: eBook
Language: English
Subtotal: $8.92
10 customers are viewing this product
The Radio Amateur's Hand Book

The Radio Amateur's Hand Book

$17.85 $8.92

The Radio Amateur's Hand Book

$17.85 $8.92
Author: Collins, A. Frederick (Archie Frederick),1869-1952
Format: eBook
Language: English

The Radio Amateur's Hand Book - A Complete, Authentic and Informative Work on Wireless Telegraphy and Telephony

Before delving into the mysteries of receiving and sending messages without wires, a word as to the history of the art and its present day applications may be of service. While popular interest in the subject has gone forward by leaps and bounds within the last two or three years, it has been a matter of scientific experiment for more than a quarter of a century. The wireless telegraph was invented by William Marconi, at Bologna, Italy, in 1896, and in his first experiments he sent dot and dash signals to a distance of 200 or 300 feet. The wireless telephone was invented by the author of this book at Narberth, Penn., in 1899, and in his first experiments the human voice was transmitted to a distance of three blocks. The first vital experiments that led up to the invention of the wireless telegraph were made by Heinrich Hertz, of Germany, in 1888 when he showed that the spark of an induction coil set up electric oscillations in an open circuit, and that the energy of these waves was, in turn, sent out in the form of electric waves. He also showed how they could be received at a distance by means of a ring detector, which he called a resonator. ......Buy Now (To Read More)

Product details

Ebook Number: 6935
Author: Collins, A. Frederick (Archie Frederick)
Release Date: Nov 19, 2004
Format: eBook
Language: English

Returns Policy

You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.

Shipping

We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.

When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.

Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.

Related Products

Recently Viewed Products