Well, it's once again that fantasmical time where we recap all the neat stuff we've been up to over the last week. There's nothing massively huge to announce today, but there are a few odds and ends... It's March, and St. Patrick's day is almost among us. For those of you who like to celebrate […]
Circuit: Lightstorm
Dave Hrynkiw
July 12, 2007
(PDF Version) GIF Link
Some of you may have found the LightStorm Pummers that Mark Tilden has made using some neat looking plastics. We've built our own variation of the circuit, which is a dark-activated, quad-bicore pseudo-random chaos generated, dual pummer circuit.
Parts required are:
Dark Turn on Circuit
- Solarcell (SB Part SC2433)
- 1F 2.5V (SB Part CP1.0F) capacitor
- 1 Germanium Diode (SB Part D2)
- 100k Trimpot (SB Part RT100k)
- 2n3904 transistor (SB Part TR3904)
- 2n3906 transistor (SB Part TR3906)
Pummer Circuit
- 74HCT240 (SB Part 74HCT240)
- 2 x 1000uF Capacitor (SB Part CP1000)
- 2 x UltraBright LEDs (SB Part UBLED-R)
- 2 x 100k Resistors (SB Part 100k)
- 2 x 22uF Capacitors (SB Part CP22)
- 4 x 0.22uF Capacitors (SB Part CP0.22uF)
- 2 x 2 MegaOhm Resistors (SB Part R2.0M)
Pummer Circuit
- 74HCT240 (SB Part 74HCT240)
- 8 x 2n3904 Transistors (SB Part TR3904)
- 8 x CP0.22µF Capacitors (SB Part CP0.22uF)
- 8 x 1k Resistors (SB Part R1k)
- 2.2 MegaOhm Resistor (SB Part R2.2M)
- 3 MegaOhm Resistor (SB Part R3M)
- 3.3 MegaOhm Resistor (SB Part R3.3M)
- 4.3 MegaOhm Resistor (SB Part R4.3M)
MORE POSTS
New Items!
Besides introducing a whole new batch of Push-Pogopins (and their measurements) into the 'misc' category, we've just introduced our 'D2' Germanium Diode. This diode is pretty good - better than the 1N270 and 1N34 types, with a voltage dropout of only 0.36V at 50mA! We're not exactly sure what type it is, but since we […]
Friday New Product: Ribbon Cable, RGB LE...
We got some sticks for sale today. Some are bendable sticks. You can use them as a belt and if you are near the hydroelectrostation dam you can put the power wire into water and that will pick up some leftover electricity and you get a glowing belt. Now other things are measuring devices. You […]
Shok Circuits
Here's a little something from Grant in the development lab - a very simple pair of circuits based on Mark Tilden's Bicore Shok architecture. This circuit makes for a very simple, effective Photovore robots, or even a photo-head. Take a look - schematics & parts listed included! We've also added a gallery entry for these […]
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Warning: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.
Please visit www.P65Warnings.ca.gov for more information. This item was manufactured prior to August 31, 2018.