How to Make a Crystal Radio – No Batteries, No External Power (2015) [video]
40 by humbfool2 | 14 comments on Hacker News.
40 by humbfool2 | 14 comments on Hacker News.
Monday 31 December 2018
New top story on Hacker News: How to Make a Crystal Radio – No Batteries, No External Power (2015) [video]
Subscribe to:
Post Comments (Atom)
No comments:
Post a Comment