Cosmic Voice logo Cosmic Voice

Hi-fi spirit for the Retro Radio.

Real reception for LEGO® 10334. Hands-on tuning. Instructions and extra parts included.

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AM/FM reception Mod kit for LEGO® 10334 Requires extra parts
Origin

Why build this?

Cosmic Voice was founded in ~1960 by my grandfather to sell radio kits and other educational materials. He also literally wrote the(a) book on car radios. When LEGO released the Retro Radio, I was excited by the concept, but I felt like something was missing from the execution: a radio. It felt like the perfect opportunity to bring the Cosmic Voice brand back to life and to realize the potential of the set. It's taken a little bit longer than I planned to get it to this stage, but I'm pleased to finally share it with you.

AM / FM

Analog tuning · Si4831 receiver

Knobs

Both functional · smooth* action

Mod

For LEGO® 10334 · adds parts

What’s in the kit

  • AM/FM receiver board (assembled)
  • Mounting hardware & wiring
  • Step‑by‑step instructions
  • Additional LEGO® elements for functional knobs & dial

What you provide

  • LEGO® Retro Radio set (10334)
  • 4 × AA batteries
  • Nostalgia

This is a modification kit: it reuses most of 10334’s parts and changes the interior layout to make the knobs and dial functional.