School Radio

Radio Record, Volume III, Issue 54, 25 July 1930, Page 6

School Radio

OST of the secondary schools throughout New Zealand possess a Wireless Club, and their members are keen experimenters, both in transmission and reception. The following notes sent by a correspondent attending Wanganui Collegiate School will be of interest to readers, especially shortwave "fans" :- "At the present time there is no school club or school receiver, but there are three private sets. Two of these are used exclusively for broadcast reception, while the third is an all-wave four, containing a tuned ;creened-grid stage of radio frequency. This set is used mainly in conjunction with a transmitter, operating under the call ZL2DS. The latter was licensed shortly before Easter, 1930, and has been on the air fairly regularly since. ZL2DS, to date, has worked 60 tions, including three in Australia. The total number of QSO’s is just over 100. A Hartley circuit was used in the transmitter until recently, but now it has been converted into a Vallauri, using two 201’s, with about 330 volts on the plate. Communication has all been on the 3500 k.c. band, and no power over 20 watts has been used. This is the second "ham" which the school has had, the other being ZL2GJ, which was licensed in the latter part of 1928.