DIY Crystal Radio Receiver Kit

~$26 typical price

A no-battery electronics kit that demonstrates how a simple crystal radio receives broadcasts.

Why it makes a great gift

Offers a memorable build that makes basic radio science tangible.

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~$35

Makes basic circuits approachable through hands-on experiments.

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~$31

Helps an amateur astronomer save and share views of the Moon and bright planets.

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~$30

A tech lover who uses computers all day gets to understand what is actually happening inside one.

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~$70

Gives a teen who loves robots in fiction the chance to build one that moves.

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