jīng​tǐ​shōu​yīn​jī

crystal radio

晶体收音机 晶體收音機 jīng​tǐ​shōu​yīn​jī
crystal radio
A simple radio receiver that uses a crystal detector to demodulate signals, requiring no external power source
transistor radio
A radio that uses transistors to amplify and process signals

Cross-References

Classifier

Same as