Thanks to some information provided to us by a very determined customer (Thanks Erin!), we've been able to pin down why some of your credit cards were being declined. We've been able to correct and verify that this bug has been resolved, so those of you who have been declined while using an otherwise valid […]
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
Wednesday Links: Tetris, Tattoo Music an...
Wednesday's here and we are back with the links of death and depression. I mean, sunshine and happiness, of course. Tetris on the Face of Skyscraper Now the next step would be to play Tetris using skyscrapers... (via Designboom) Robotic Instrument Plays Tattoos as Musical Compositions This is the first time when the musician's repertoire […]
Holiday Shipping
Another year has snuck by, and here we are on the cusp of another winter holiday season! If you want to give a Solarbotics Kit (and we hope you do...) to somebody special this year, you should be aware of our shipping deadlines. It's not recommended to use ground shipping now (which can take up […]
Wednesday Cool Links: Theremin Goggles, ...
Shooting analog pictures, shooting bullets underwater, shooting… theremin noises from goggles, shooting… human-powered helicopters! if that doesn’t make any sense, see the links below: Steampunk theremin goggles A wicked build by [Sarah] - theremin steampunk goggles. Photo sensor will feel the amount of light and the slider would adjust the pitch of the sound produced. Check […]
Solarbotics has been operating for more than 25 years, bringing electronics know-how and supplies to both the electronics professional and hobbyist. We'll be happy to help you too!
Solarbotics, Ltd. is not responsible for misprints or errors on product prices or information. For more information, please see our Terms and Conditions.
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.