Evil Mad Science Garage Sale
Neat-o! You've found the Evil Mad Science Garage Sale. Here you can sometimes find cheap, interesting, broken, surplus, inappropriate, and/or weird things for sale.

Please read these important policies about the Garage Sale:

  1. If your order contains any any garage sale items, your order shipment may be delayed by up to a week while we dig those items out of the back of the garage and get them to the warehouse. If there are regular items in your order you would like to get sooner, please consider placing a separate order.
  2. All items are sold as-is and are limited to stock on hand.


EvilMadScientist Project Parts

3 mm Clear Lens LEDs:

You asked for them, so here they are: LEDs that are perfect for Edge-lit Holiday Cards. 10 each of blue and white, superbright 3 mm clear lens LEDs. Brand new and very bright (appear to be 5000-8000 mCd class). Clear-lens 3 mm (T-1) package with flatted side and short lead to indicate cathode. We'll keep a bunch of these in stock so they won't be subject to the usual garage sale delay.

3 mm Blue and White LEDs (10 of each) $5 Add item to Shopping Cart

Cheap Toothbrushes

Yup, toothbrushes.

These polypropylene-handle, nylon-bristle toothbrushes are *terrible* if you want to brush your teeth, because the bristles don't spring back very well. On the other hand, they are a good pick for BristleBots because (1) you can angle the bristles by hand-- just push hard and (2) the back side is very flat, unlike more expensive toothbrushes that are rounded-- this makes it easier to mount your battery and motor. Also, they're very cheap. New, individually wrapped-- and probably even sealed-- but we don't guarantee them to be clean and/or sterile enough for any particular application.

Cheap Toothbrush $0.25 Add item to Shopping Cart

Practice PCBs

Need to bone up on soldering? Just goofing around and want some boards to practice on? Teaching a class and need some practice boards? We've got you covered. You'll get a pack of five brand new, clean, high quality, lead-free, through-hole circuit boards. (Ones that we're not using because they're obsolete or have minor mistakes in the circuitry.) All boards have places for integrated circuits, LEDs, capacitors, resistors, headers, and other common components. You'll get five boards; could be five of the same or all different; you never know. :)

Practice PCBs $2.50 Add item to Shopping Cart



Electronic Components (Surface Mount)


LM393 (SO-8), tubes of 100.

LM393 Dual Comparator, ST Microelectronics. Tube of 100. SO-8 (surface mount) package. Surplus, new in tube. (2 tubes on hand)

LM393 (SO-8), tube of 100 $17 Add item to Shopping Cart



Spare Parts Kits

Spare parts for Interactive LED Panels

Repair kit for one Interactive LED Panel. Contains five replacement quad op-amp chips, to replace components that can be easily damaged by reverse voltage.

Interactive Panel Spare Parts $2 Add item to Shopping Cart

Spare parts for Peggy 2

Repair kit for Peggy 2. Complete chip set including preprogrammed ATmega328 and electrolytic capacitors.

Peggy 2 Spare Parts $15 Add item to Shopping Cart



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New pager motors!

Making Bristlebots? Score some of our excellent new vibrating motors. They're fast and tiny!

Click here!