Hard Rock Radio

rock_radio

[Guus] sent in his project where he put a radio inside of a rock. He started with a 1970’s car stereo and encapsulated it in cement by wrapping it in duct tape, building a wooden form around it, and pouring in the wet cement. Three ports are included on the back for power, antennae, and speaker. He included an outline of how he did this but we’d love to hear some tips on how he made it look like a rock and not just a brick of concrete.

16 thoughts on “Hard Rock Radio

  1. “but we’d love to hear some tips on how he made it look like a rock and not just a brick of concrete.”

    um, it does look just like a brick of concrete – a badly deteriorated brick of concrete.

    interesting idea. I wonder if the duct tape protected by concrete makes it waterproof enough for long-term outdoor use in an exposed environment.

  2. It would have to be pretty waterproof as the concrete would have been giving up large quantities of vapor during/after curing.
    The inside of that thing would have been drenched if there was even a pinhole in the vapor barrier, or around (or through) the connectors/controls.
    This last part is the hardest to work around.

    I would say the odds of any stereo surviving the month or so of serious dripping condensate inside is a toss-up. Old 70’s equipment would likely fare better than 80’s construction techniques, but its still gonna be a crapshoot at best. What have you got to lose though, a 70’s radio?

    Cool idea.

  3. I dont think he intended for it to be waterproof.

    “but we’d love to hear some tips on how he made it look like a rock and not just a brick of concrete.”—— a hammer. read the link you posted.

    I wonder about over heating issues. concrete is a pretty good insulator.

  4. “but we’d love to hear some tips on how he made it look like a rock and not just a brick of concrete.”

    from the article: “with my ‘Now it doesn’t work anyway’ philosophy, I took a big hammer and created this Flintstones look…”

  5. 10,000 years from now they will find this guys radio and some one will get a Ph.D. Lol great work man. Talking about thinking out of the “BOX” :)

    +10 Kudos

    You’ve Leveled-Up.

    New ability gained. “Rock-n-Roller Roar”
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