Let's Make Robots!

Cool resistors

As featured on the liveshow, now in ultra high res. A 3 digit adjustable resistor. 10 kOhm potmeter. It's name and number are easy to find online: Bourns 3683s-1.

Next is another 10 kOhm potmeter. This one is a 360 degrees continuous rotation type. Also by Bourns: 3585s-1. The datasheet says "obsolete", but google still has links to companies who will give you a quote for it. I'm guessing you must be one very rich air plane owner before buying one of these from their shelves!

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A cheap and invaluable tool in any electronics lab is a decade resistance box

(not my pic)

mine looks vaguely like the one above, steampunk looks not required but always welcome of course.  They are rather cheap on ebay.

In some electronic stores you should be able to buy a "Resistor wheel". These can be useful when experimenting with prototype circuits to find that "perfect" resistor value.