The Birmingham age-herald., 1922-07-16

We are in receipt of letter from one of our readers in Reform, Ala. telling us about his set. We were very much interested in his letter and would have replied but the writer neglected to sign his name. We will appreciate it if he will write to us again, signing his name and if he can conveniently send up a pie ture of this set which he has built. we will. be very glad to publish the picture with a complete description for the benefit of the many readers of this page.
 We are also in receipt of another letter from one of our readers, living here in Birmingham. This reader also neglected to sign his name. He wants to know more about Mir. Arzin- gers set, loop aerials, etc. If this writer will address another letter to us. repeating his questions, we will be very glad to give him the in- formation he desires.
 The French government is now using a system by which they can communicate by wireless at the rate of 200 words per minute. This is done with machine receiving on phonograph record, which is turning rapidly and read off slowly and tram scribed on noiseless typewriters.
 Proctor Barnett, living in Mountain Terrace. has a vacuum tube receiving set,
 Frederick Murray, Altamount read.
 receives over an Audion set.
 Taswell Morton has short wave
 regenerative set using variometers. luo x.fifb tu aaf n fNun qf a audio frequency amplifier.
 What at first appeared to be an
 accident proved to be a very in-
 teresting experiment recently. Dr. Stephen Carleton of Flushing, Long Island, by mistake left short wave regenerative set, using variometers, and varo coupler and honeycomb regenerative set connected to one aerial. He found that he was re- ceiving broadcasting station on S60 meters,. and Station ". V. P. on 145o meters at the same time and on the same Aerial. He then heard the Ar
 lington time signals from the orig
 inal station on the NE wave set.
 He then tuned w. J. z. relaying the
 same thing on S60 meters This was certainly an unusual experience.
 Many of you have, no doubt, been interested in reading about Marconi's efforts to reach Mars via wireless. Few figures have been published, with reference to the expense inci- dent to such an experiment. To be- gin with it would cost $5,000, 900, 900 to send this message to Mars. It would require a sending station 1,- 500 900 K w on a 10000 meter wave length. It would take the message about four minutes to reach Mars, travelling at the rate of 1S6,00 miles per second. It won't be necessary for any of you to tune in the station from Mars for some little time to come.
 The following boys nave started in the radio game with crystal sets: James Richardson, Canal street. Ben Simms. Twelfth avenue, north. Graham MeCarroll. Twelfth avenue, north.
 vaace Hall, 'Twenty-sixth, street, north.
 Gus Wingo. St. Charles street. Sloan Williams, St. Charles street Clarence Kerns, St. Charles street. John Henley. St. Charles street. James Mcintosh, Twelfth avenue, south.
 Harry Wood, Twelfth Court. Edwin Norton, Twelfth Court Chalmers Horton, Twelfth Court. John Gibbs. Twelfth avenue north. Cecil Sanderson, Caldwell Terrace. Wesley Abercrombie, Nineteenth street.
 Llwelyn Johns, Tuscaloosa avenue. John Perryman, 1912 St. Charles street. has home made short wave regenerative and long wave honey comb set. He has a one stage ampli- fer which can be used on either set. Leslie Sawyer is now resolving over short and long wave honey comb set.
 Herman Altman, 1713 Fourteenth avenue, south, tells us he has five home made crystal sets all of which