antentopSince2 July

Ham Spirit
Free Choice

 

 

Free Antentop Amateur Open Book
Antentop Album
Antentop Survey

 

 

 

Antentop is FREE e-magazine devoted to Antennas and Amateur Radio an

Special page devoted to

Wooden Struts


Custom Search

 

ANTENTOP- 03- 2003, # 004

Wooden Struts

 

 

By Igor Grigorov, RK3ZK

antentop@antentop.org

 

 

 

In the far eightieth years of 20 century, on to one of Russian radio transmitting radio center I saw a self-made opened transmission line that fed a transmitting antenna. Struts of the line were made of oak tree. What is wonder at that? These struts were about some tens years old. They were made at the end of 40 years, during restoring of the USSR after World War-II. The struts had been thoroughly boiled in paraffin before installation. Till now these wooden struts, made in great quantity, lie in a tub filled with paraffin. At repair of transmission lines the paraffin is kindled, the insulators are got and used. The wooden struts, despite of their “antiquity”, looked rather ‘fresh’ and had sufficient mechanical and electric strength.

 

Figure 1 Wooden compression strut

 

Made in the USSR

 

Figure 2 Two -wire line with usage of wooden compression struts

 

The struts had length 12-15 centimeters, and width about 2 centimeters. Kerfs were made at a small distance from ends of the struts. Figure 1 shows the wooden strut. Wires of the ladder line were wound around of struts and kept on kerfs. Figure 2 shows the two-wire line with usage of wooden struts.

 

 

 

 

 

 

 

 

http://www.antentop.org/

Page 76

 

76

 

 

QRP Transceivers and PA from Accessible Parts IP for QRP Antentop Book Radio Antenna Engineering Book Antentop Printed and e- magazines
 


 

 

Just for Fun:

Map IP Address
Powered byIP2Location.com

Thanks for your time!

Last Updated:

August 7, 2016 20:47

Antentop Home Page

Free Antentop Open Book