ОНЧ СДВ приёмник с КП103 и МП25 транзисторов с улучшенной чувствительности.
VLF natural radio receiver with old germanium transistors. I repaired first transistor stage to common source configuration. This solution increase sensitivity.
VLF natural radio receiver with old germanium transistors. I repaired first transistor stage to common source configuration. This solution increase sensitivity.



