Today we proudly present not ONE, but two products! Mind-blowing stuff... So impressive... Well, if someone didn't beat me to the The Northern Lights Bundle yesterday, we would've had three... Solid State Relay SSR-10DD 10A/5-60VDC 3-32VDC $10.00 Traditional relays actually have physical little contacts that when powered by a little signal, bang together to pass […]
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 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 […]
More new stuff... SC3782!
Cool! We've found some SC3782 (37x82 mm) solar cells! Since Panasonic ain't making these anymore, and there aren't many of these left, you'll only find them here at Solarbotics until they're all sold out. Get'em while they're hot!
Evil Mad Scientist Inventory... Welcome ...
Earlier in January we had a very interesting discussion with the chief geeks at Evil Mad Scientist Labs. They've been doing similarly-unique DIY as Solarbotics for a good long time, but they had now found themselves in the position of shuttering their operation to take some lead rolls with Bantam Tools. This meant moving from […]
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.