On Tue, 15 Oct 2019 12:48:24 -0700 (PDT)
hanc...@bbs.cpcn.com wrote:
> We see kids and the audio devices and ear buds. We
> think of them as something new,body=0
Hardly new, both 'crystal' and 'magnetic' earpieces were
commonplace in the 1960s - an essential component for small radios.
> but here is an ad from 1945 showing their use.
OK I didn't realise they went back quite that far.
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