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江苏省高淳县薛城公社贫下中农于1970年,在南字823部队颜建中等四位同志的积极协助下,试制成功了一种新型扩音机。这种扩音机打破了电子设备设计、制造上的传统观念,去掉了电源变压器,安全可靠地解决了机壳带电的问题。由于去掉了笨重、昂贵的变压器,这种扩音机造价低、体积小、重量轻、电性能良好。按照这种新的设计思想进行探索,将有可能使更多的电子设备安全可靠地甩掉变压器,这对于发展我国广播、电视事业和电子工业,是很有益的。本刊这一期登载了江苏省镇江地区革委会的一篇调查报告,同时刊登颜建中同志的一篇文章。今年六、七月间,颜建中同志两次应邀到中央广播事业局做了关于无变压器扩音机的报告,并用“高淳放大头”和无任何变压器的扩音机等实物做了现场表演和讲解,到会的同志受到很大启发。
Gaochun County, Jiangsu Province, Xuecheng commune poor under the middle peasants in 1970, in the southern word 823 troops Yan Jian middle four comrades with the active assistance, a successful trial of a new megaphone. This megaphone broke the traditional concept of electronic equipment design, manufacture, remove the power transformer, safe and reliable solution to the problem of the case charged. Due to the bulky, expensive transformers removed, this amplifier is low cost, small size, light weight and good electrical performance. Exploring this new design idea will make it possible to get more electronic devices safely and reliably off the transformer, which is very beneficial for the development of China’s radio and television industry and the electronics industry. This issue contains an investigation report of the Revolutionary Committee of Zhenjiang Prefecture in Jiangsu Province and an article published by Comrade Yan Jianzhong. In June and July this year, Comrade Yan Jianzhong was twice invited to the Central Broadcasting Administration to make a report on the transformerless megaphone and gave live performances and explanations with the in-kind “Gaochun Amplification Head” and a megaphone without any transformer. Comrades are greatly inspired.