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近几年来,国内外袖珍式晶体管收音机的试制与生产日益广泛,如日本SR-G430红宝石特小型晶体管收音机体积仅48.5×43×20(毫米)、重仅85克.这类特小型晶体管收音机,绝大多数是采用小口径、扁平化的纸盆扬声器作为放声元件.而纸盆扬声器的完整设计资料迄今为止尚不多见.特别是小型纸盆扬声器(通常指直径小于65毫米)的设计,往往与实际试制有距离,多数还是凭借经验凑合进行.本文试图以小
In recent years, domestic and foreign pocket transistor radios trial and production of an increasingly widespread, such as the Japanese SR-G430 ruby special small transistor radio volume of only 48.5 × 43 × 20 (mm), weighing only 85 grams.This type of small transistor radio, The vast majority use small-caliber and flat cone speakers as the sound-radiating elements, while the complete design information for cone speakers has so far not been available, especially for small cone speakers (usually less than 65 mm in diameter) Often with the actual trial have a distance, most still rely on experience make improper.This article attempts to small