Patrick Casey

@peculiargames

Robots, Tesla coils, apps/games. AndModPlug, RGBbot, Voyage to Farland (Mystery Dungeon style roguelike), & Microchip Monsters dev.

peculiar-games.com
Joined April 2010
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  1. Pinned Tweet
    2 Feb 2016

    Voyage to Farland, my Mystery Dungeon style roguelike game on Steam.

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  2. Aug 8

    It's John Fuhring's design.

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  3. Aug 8

    Used some of the toroids from last night's tweet to build an AM transmitter, Manhattan style.

    2 replies 1 like
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  4. Aug 7

    Probably going to try to build a Heathkit CR-1 clone, but using these toroids.

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  5. Aug 7

    Today's red-clear toroid haul. Type 2 iron powder material that'll hopefully be good for AM broadcast band frequencies.

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  6. Jul 30

    Been building another crystal radio. Basketweave coils, variable capacitor made from a CD & aluminum tape, epoxy resin-cast knobs.

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  7. Jul 20

    New reading material arrived today. Looking forward to digging in!

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  8. Jul 16

    Made a couple of basketweave coils for crystal radio experimentation.

    1 retweet 1 like
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  9. Jul 7

    Casting homemade retro control knobs in epoxy resin to use in radio projects.

    1 retweet 3 likes
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  10. Jul 1

    It uses an oxidized penny as the "crystal", clamped into that shallow copper pipe cup.

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  11. Jul 1

    Couple of pics of the crystal radio I've been working on.

    1 reply 1 retweet 1 like
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  12. Jun 16

    Been a fan of DIY adobe houses for ages.

    Hackaday Prize: Cal-Earth is Digging Deep to Shelter Those in Need For the average person, a government order to shelter in place or stay at home comes with some adjustments. Many changes are cerebral: we navigate vast expanses of togetherness with our …
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  13. Jun 15

    How to make a battery-less radio receiver in the zombie apocalypse. Very clever use of the card chip power-ground schottky protection diode (I think).

    Credit Card Chip Used To Make Crystal Radio Perhaps the simplest radio one can build is the crystal radio. Using a diode as a detector, the design generally uses less than 10 components and no battery, getting its power to run from the radio signal itse…
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  14. May 22

    Ball joint cat whisker for the crystal radio.

    1 retweet 1 like
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  15. May 21

    Homemade capacitors (or condensers!) to keep my crystal radio old-school (-ish). They're "fruit roll-ups" of aluminum foil & transparency sheets with nickel tabs. The finished one is stuffed in a cardboard tube, lacquered and fitted with AA battery steel tube end caps.

    1 retweet 5 likes
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  16. May 20

    Ordered some fahnestock clips to use in crystal radio projects.

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  17. May 16

    This!

    0:10
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  18. May 16

    This becomes... ⬇

    "Upcycling" time. Solar lamp to B.E.A.M. Pummer.
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  19. May 11

    This one differs from the previous tweet in that I _think_ this method produces the more colorful copper(I) oxide as opposed to the more common copper(II) oxide. Wish I had an electron microscope to examine both versions' crystal structures...

    More cat whiskering this evening. This is the first one I got to work as a crystal radio detector. You clean the *post* 1983 penny (copper-plated zinc), bake at 250°C 30min to age & form copper oxide.
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  20. May 11

    Some progress! Blasting these copper-plated zinc pennies with a butane torch until an iridescent oxide layer forms makes them into diodes. Then the "cat whisker" completes the point contact semiconductor. Next stop: penny diode "crystal" radios...

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  21. May 7

    Still fighting my chemistry ineptitude, trying to form red cuprous oxide on pennies. This time using electrodeposition instead of blasting it with a butane torch. Center band looks promising, but we'll see...

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