This past winter I designed and constructed a stereo vacuum tube amplifier based off of the TubeLab SimpleSE design. Since many people asked about it at Maker Faire Detroit, I thought I would post a link to the build photos and some more details. Check out the build album below! Some more technical details: Preamp: […]
DC-DC converters are widely used components that convert DC power from one voltage to another, producing a regulated output voltage. These devices are used in many electronic products, including laptops, mobile phones, and instrumentation. Like any device, DC-DC converters need to be characterized by manufacturers and by engineers evaluating them for a design. Given the
Watch signals propagate through basic digital circuits. Emulate any two-input logic gate using just one rLogic board and one jumper. To order rLogic+, the breadboard compatible variant, simply order normal rLogic. When the survey is sent out you will indicate which you would like. rLogic is a basic breakout board for the Fairchild Semiconductor TinyLogic®
This is a brief review of the capabilities and ease of use of three of the most interesting, innovative and downright disruptive web-based EDA tools: EasyEDA Upverter Autodesk 123D Circuits (formerly Circuits.io) The same simple astable multivibrator circuit is entered into each tool and the design process followed through simulation (where offered), to PCB layout
How to Build PCB Online using Web Based EDA Tools Read More »
The Nomad 883 is a ready-to-run CNC Mill that’s at home in any environment. UPDATE #1: Watch Jorge and Apollo pitch The Nomad to Leo Laporte on the new TWiT show, “I’d Fund That” at http://www.youtube.com/watch?v=eNqggrDxHhI UPDATE #2: Stretch Goal Met! Every machine comes with the Flip Jig for two side machining and INNER CIRCLE pledges
The fact of having a CNC available at home gave me the freedom to build stuff more easily and quickly than before. Without this machine parts would take some time to manufacture and most likely would not end so perfect. This caused new ideas to be easily implemented. This was one of those ideas that
Northwestern University researchers are the first to develop a new solar cell with good efficiency that uses tin instead of lead perovskite as the harvester of light. The low-cost, environmentally friendly solar cell can be made easily using “bench” chemistry—no fancy equipment or hazardous materials. “This is a breakthrough in taking the lead out of
Environmentally friendly solar cell pushes forward the ‘next big thing in photovoltaics’ Read More »
The traditional three op-amp differential amplifier’s signal to noise ratio can be improved by 6dB by adding a resistor and slightly changing the connections. There is a trade-off though: The traditional topology has a high input impedance, whereas the low-noise version has a lower input impedance. Figure 1 depicts a traditional three op-amp differential amplifier.
Differential amp has 6dB lower noise, twice the bandwidth Read More »
Company Quectel brings to a market its first high-speed module EC20 which you can try yourself. More than fifty developers worked for over ten months on this module. We´d like to share with you its parameters, as well as hints, which can make your work with this module easier – this is our biggest bonus
The smartphones carried by passengers on board a Malaysia Airlines flight could yield vital information about what happened to the missing plane. Almost nine weeks on, the search for flight MH370 has come up with nothing. A robotic sonar-carrying submarine is now searching the seabed 2000 kilometres off Perth, Australia, but after scanning 314 square
Smartphone sensors could yield airplane accident clues Read More »
