https://hackaday.com/2020/01/15/the-flexible-permanence-of-copper-tape-circuits/
and
https://halestrom.net/darksleep/blog/039_coppertape/
Posts
Crystal Radios • Re: Nice sounding selective FM xtal radio
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Thank you for your post!
First attempt. With BAT48 and 3200 Ohm headphones, I hear nothing. I
suppose I must use the BAT32.
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1 hour ago
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