OCR Text |
Show Longer Life for Your Tubes. For storage battery economy and longer life of the vacuum tube, it ls always best to employ the minimum filament brilliancy consistent with adequate ade-quate audibility of the signals being received. Nothing Is gained by burning burn-ing the filament above the temperature necessary for maximum regeneration, and white heat Is seldom necessary to accomplish this, ncc-ording to Iladlo Broadcast. By resorting to a two-stage two-stage amplifier In receiving from distant dis-tant broadcasting stations, ample audibility au-dibility can be obtained without excessive ex-cessive filament brilliancy. As a matter mat-ter of fact, signal strength may well be sacrificed to purity of tone in voice and music, for after all it is faithful reproduction of sound rather Uian maximum noise which makes radiophone radio-phone reception enjoyable. |