auringonkukka Teoreettinen järjettömyys crystal radio loop antenna Vaeltaa ääretön Lopullinen
Marcos' Corner
Good Antenna is Best RF Amplifier for Crystal and AM Radio Sets
This loop antenna can be used as the LC circuit of Crystal Radio or Regen radio. ---------------------- Loop Antenn… | Ham radio antenna, Antenna, Radio antenna
CRYSTAL RADIO
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Portable crystal radio using a loop antenna
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