Doctor Who Tardis Key Perception Filter

About: The above picture is not only not of me, nor my cat, I didn't even take it XD There's info that is updated more frequently on my site (if it's up), my channel, and the blog account. Anything else you wan...

In Doctor Who, The last two episodes of series three are a two-part plot. (Available on Netflix, if you're interested) In it we get a good look at the Tardis key, outfitted with a small 8 pin chip and a ceramic capacitor to make a Perception filter. Easy enough prop to replicate.

Step 1: Supplies

There are only three components to this project. A scrap key, an eight pin chip, and a ceramic capacitor. 555 timers a caps are common hobby project parts. These parts can be purchased new from places like Radio Shack and Diji-key, but can be found on scrap boards just as easily. These orange ceramic caps are more commonly found on older boards (as SMTs have widely replaced their Through-hole counterparts) while the chips are more common in newer ones. If you don't have a bin of dead keys, your local hardware store may have a bin of mis-cut keys from which you can choose.

Step 2: Assemble



    • Tape Contest

      Tape Contest
    • Arduino Contest 2019

      Arduino Contest 2019
    • Trash to Treasure

      Trash to Treasure



    6 years ago on Introduction

    When I first saw the 8 pin DIP chip attached to the key in that episode of doctor who the first thing I thought was "wow, you can really do anything with a 555 timer!". ( :