the DIY mobile phone "Mobile Phones Theory and Construction" in 2600 vol 3 no 4 is...fascinating. Outdated, and they were clearly not intending everyone to go out and build one but...what if everyone had?

The US could have had unbillable, untraceable ubiquitous cellphones.

Could you imagine that happening today?

it was actually kind of an interesting volume. Particularly liked the WW2 article about eavesdropping on Winston Churchill

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