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Tektronix TDS-1000 |
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| > The Tektronix TDS-1000 is a great low-cost digital storage oscilloscope for the microprocessor developer. We have the old model TDS-220 and love it. The ability that storage scopes have to capture and display a single event make them extremely handy for micro controller development. This model's very compact size also makes it great in the field. We do however consider that an analog scope may still be a better choice for doing sensitive analog work. These scopes are somewhat noisy at low voltages. |
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www.tek.com |
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| Mitutoyo Calipers |
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| > When laying out PC boards, it is very useful to measure small distances accurately. Selecting hole sizes for components requires measuring pin diameters in thousandths of inches. When placing pads for components or connectors with unusual lead spacing, it is necessary to carefully measure the pin layout. We have always been happy with Mitutoyo calipers for this job. We use both their dial and digital display models. A good selection of Mitutoyo calipers are available at McMaster-Carr. For the casual user, a no-name brand dial caliper is likely to be fine and cost under $50. |
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www.mitutoyo.com |
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| Digi-Key |
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| > Digi-Key is a great resource for electronics components, such as semiconductors, resistors, capacitors, and connectors. They have a large inventory and ship very quickly. Their catalog often shows physical dimensions of parts, which is a big help when laying out PC boards. Many parts found in the ExpressPCB component library include Digi-Key part numbers. |
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www.digikey.com |
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| Stencils Unlimited |
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| > We have not tried this, but it looks like an interesting way to assemble prototype boards with surface mount components. Stencils Unlimited offers a low cost kit for mounting SMT components using a reflow technique. Their kit includes a laser cut stencil of your circuit board, along with solder paste, a squeegee and temperature markers. An inexpensive toaster oven is used to reflow the board. |
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www.stencilsunlimited.com |
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| Mouser Electronics |
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| > Mouser Electronics is very useful source for electronic components, particularly when prototyping. Their website and online catalog is an important source of technical information such as component data sheets. |
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www.mouser.com |
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| CaseCAD |
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| > For protecting delicate equipment, we love Pelican cases with foam interiors from CaseCAD. CaseCAD is an online service that makes low-cost custom foam inserts for equipment cases. Designing a custom interior is fast and easy using the layout program that is free from the CaseCAD website. These cases not only protect your equipment, but also look extremely impressive. |
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| Pic-Servo Motion Control |
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| > We find that motion control projects are made easy using the PIC-SERVO. The PIC-SERVO is available either in a two chip set, or as a single board controller that includes the motor amplifier. It has a serial interface so it is easy to connect with a computer. The PIC-SERVO is probably the fastest and least expensive way to get a DC servo motor up and running. They also offer a stepper motor controller. |
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| GetThePatent.com |
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| > If you are considering patenting a new invention or product, a great place to start your research is GetThePatent.com. They offer a fast online tool for patent searches. Their database not only includes US patents, but also the patents registered in most European countries and Japan. |
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www.getthepatent.com |
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| Envision Plastics |
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| > Envision Plastics and Design offers an interesting enclosure solution for products to be manufactured in quantities from 50, up to a few thousand. Their plastic enclosures have a "consumer product" feel, but do not require expensive tooling or setup costs. This makes them a practical solution for small production runs. |
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www.envplastics.com |
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| Alta Via Technologies |
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| > Alta Via Technologies is a high-end PCB design service. They specialize in laying out complex circuit boards for commercial, military, and medical applications. They offer significant expertise when working with PCB design issues such as high speed circuits (10Ghz +), high density SMT packages, and controlled differential impedance. |
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| McMaster-Carr Supply |
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| > McMaster-Carr Supply Company is a good source for mechanical parts. They have a complete selection of screws, nuts, washers and other fasteners. McMaster's offers raw materials such as aluminum and plastics. They are also a good source for tools and machine shop supplies. They almost always have what you need in stock and ship very quickly. |
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| Online Metals |
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| > Online Metals is a very convenient source for purchasing small amounts of machinable metals and plastic. They have a good selection of aluminum in both sheet and plate, as-well-as delrin, nylon and acrylic. They will also cut to size. |
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www.onlinemetals.com |
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| AppCAD |
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| > AppCAD is a free RF design tool for Windows that can be downloaded at no cost from HP / Agilent. It is useful to help with the calculations for many RF, microwave, and wireless applications. PC board designers of RF circuitry will find the transmission line calculator handy. It also includes many computerized application notes relating to RF topics. |
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AppCAD |
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