HackSpace – September 2019

(Jacob Rumans) #1

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y name is Adam Clark (aka Ajax Jones), and
I have listened to quite a few of the archive
broadcasts from WW2 online, but wanted
to listen to them on something more fitting
and physical. To this end, I bought a very
old, non-working valve radio, and replaced
the internals with a Raspberry Pi Zero on a custom 3D-printed
chassis. The dial is used to select different years of the war, and
the relevant radio broadcasts are then played out. To read the
dial, I used an MCP3002 analogue-to-digital converter (ADC),
and for the audio, I used a MAX98357 I^2 S Amplifier. Keeping the
original speaker in use was a great stroke of luck, as the reward
was an amazingly authentic sound.

M


WW2 radio


broadcast


time machine


By Adam Clark hsmag.cc/SvkMVj

Right
Like this brilliant
Raspberry Pi-based
build? We’ll feature
it in more depth
in a forthcoming
issue of HackSpace
magazine
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