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电子管收音机输出4瓯怎么改8瓯

2025-04-03 18:53:00

推荐回答（2个）

回答1：

1.看看输出变压器次级上是否有8Ω抽头？
2.换用4Ω的喇叭。或者换用带8欧姆抽头的输出牛。
3.就这样直接用。
4.将输出变压器拆开，次级用0.35mm漆包线加绕42匝左右。加绕后，给初级加上220V交流电、测量次级电压，原绕组电压应该为6V左右，串联绕组后电压应为9V左右，如果电压变成3V了，说明绕组接反了，对调一下线头即可。不过改制前首先得确定窗口能否容得下加绕的线圈！！！否则白忙乎！！！

回答2：

把输出变压器次级的圈数增加40%即可。

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