THE WORLD'S ADVANCE 



253 



W/fh Telephone switch 



A/VW 



>TX r -> 

 Ml) <sH j. 



Telephone key 

 End ce/l swifch 



Wiring Diagram of Complete Receiving Set, with Telephone Switch. 



to the right, S* to the left, and short- 

 circuiting condenser No. 2. This pro- 

 cedure enables the reception of very long 

 waves. 



The two connection diagrams follow, 

 depending on whether or not the tele- 



phone key is used. Binding posts B and 

 C and E and F may still be used in the 

 second diagram. S* in the first diagram 

 is an ordinary double-pole double-throw 

 switch, not placed on the box of the re- 

 ceiving set. 



AMATEUR MARCONI RADIO 

 ASSOCIATION 



There has recently been formed at 

 Troy, N. Y., the Amateur Marconi Radio 

 Association, which now has a member- 

 ship of nearly thirty. The association 

 has for its object the bringing of ama- 

 teurs into closer touch with each other. 

 The club takes in a radius of about five 

 miles with Troy as the center. 



The officers of the association are as 

 follows: President, Wendell King; 

 Vice-President, William Robbins ; Secre- 

 tary, Harold Connor and Treasurer, 

 Everett Barnes. 



Each member owns a wireless receiv- 

 ing set, capable of receiving the time 

 signals from the Government station at 

 Arlington, as well as those from the 

 Sayville station. The association has re- 



cently purchased a hot wire meter for 

 its use in order to enable closer tuning of 

 the sending sets of the more advanced 

 members. 



Correspondence with other similar or- 

 ganizations and with amateurs desirous 

 of joining the association is solicited. 

 All communications should be addressed 

 to the Secretary, 827 Third Avenue, 

 No., Troy, N. Y. 



ERRATA 



The article entitled "A Memorial 

 Fountain to Wireless Operators," which 

 appeared in the July issue, gave the death 

 of Wireless Operator George C. Eccles 

 of the steamship Ohio as August 26, 

 1912. The correct date is August 26, 

 1909. 



