ОНЧ хор рассвета - приёмник на транзисторов КП103, МП25
VLF dawn chorus on VLF receiver with old germanium transistors. Location: Latvia, city Ogre. Interference noises from smartphone screen.
VLF dawn chorus on VLF receiver with old germanium transistors. Location: Latvia, city Ogre. Interference noises from smartphone screen.