Page 16 Advertisement 1

Radio Record, Volume V, Issue 19, 20 November 1931, Page 16

All-British Componente For This Week ' Special Circut The famous Marconi Screen-Grid Valve Type S.625 for inclusion in the special circuit described in this week s (Radio Record" . can now be obtained at a remarkably low figure from all Radio Dealers_ For best results in this special circuit 28 well as all other circuits use only AWA Ideal Transformers,, AWA Logarithmic Condensers and AWA Valve Sockets: The A.W.A. VHMIc . IDEAL TRaNB?ORMEr i8 available in three ratiog: 2_1, The A,W.A: 3} 1 and 5_1. They are en- cloged in an attractive bronze duco-finished shield, the average LOCARITHMIC weight being pound 4} ounce8. The overall measurements are: bage, 2 3-8 inches by 2 inches, CONDENSER and height 3 3-8 inches. The Ideal Transformer has been designed to give distortionles8 i8 manufactured in four capacities: .0005 mfd. (23 plates) , reproduction over the broadcast Frequencies, and includes ample .00035mfd: (17 plates); .00025mfd: (13 plates) , .000 Imfd. (7 plates) , and ie 80 designed that it follows a true log- iron and copper combined with arithmic scale throughout. They _ incorporate an abso- high-grade insulation, thue en- lute minimum of ingulating material; and the metal frame suring efficient performance under all normal conditions. The terminals are mounted has been reduced a8 Far 88 practical, thereby ensuring low logs, egpecially on short wave8. low down to simplify wiring and are each clearly indicated with their correct designationg: They are designed on the centraline principle which, com- bined with their logarithmic (square law) characteristic, engure8 selectivity in tuning: The hollow spindle makes provision for clockwise and anti-clockwise movement, to- gether with gang operation if reguired, The entire Tbe AaWV.4a VALVE SOCICET Condenser i8 silver plated, giving it a neat and attractive appearance. High-grade genuine moulded Bakelite Insulation: UX and UY types. Above goods obtainable at all high-grade Radio Stores: ~ORLD Wibe Amalgamated WIRELESs Wireless (Asia) Ltd. Po. BOX 830, WELLINGTON: