I got Soviet made germanium diode and modified the radio

I remodeled the radio using a germanium diode from the former Soviet Union.
I can hear it well.
Foxhole radio →    • Making a Foxhole radio  Very primitive  
It seems that kits are also sold. → https://amzn.to/2CLBpvM
Twitter:   / ichiken_make  

★ Equipment used (including amazon associate link)
Soviet germanium diode
Oscilloscope https://amzn.to/2xV7u2h
Multimeter https://amzn.to/2LnLksJ
LCR meter

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Raspberry Pi https://www.youtube.com/playlist?list...
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music: Kevin MacLeod, The Big Beat 80's.