Tis the official “Talk Like a Pirate Day” this fine Septembarrrr the 19th. For all ye landlubberrrrs, thatÂ’s this Tuesday September the 19th. If ye be an unbeliever, check out the official site here. In celebrrration of this fine tradition, we be offerrring a special deal. Everyone knows that every good Pirate needs a swashbucklin-Solarrrr-Speederrrr […]
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
Sherline Price Increase
Hey - don't blame us! We're just the messenger. Actually, Sherline has kept prices constant for the last 3 or 4 years, and were overdue for the increase. They're quality machines, and simply put - they're not cheap crap. If you're doing miniature machining, you'll be hard pressed to find a better machine with as […]
New Inexpensive Gearmotors!
Woohoo! We're thrilled to announce that Solarbotics is the exclusive importer for these Mark Tilden-designed gearmotors. 224:1 ratio, lots of torque, modifiable - these are idea for high-torque applications like walkers and turbots. Check the "New Items" listing on the left side for details, or view them directly here: GM2 (offset) or GM3 (90 degree) […]
New Motor!
We've been very fortunate to be offered a limited supply of the amazing Portescap MU915L gear motor. Sound familiar? They should - they're the motivators for the legendary "Walkman" by Mark Tilden. We don't have a huge number of these, so if you're interested, order soon! (Limit 5 per customer)
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.