Two days of Free Electronic Hardware and Software Design Consultancy - Free two day consultancy on your project, subject to an initial feasibility discussion, providing an understanding of what is possible and the times and costs for developing the solution. By Stuart Jamieson (23/06/10) ... more

Chemical Etching; a metal manufacturing service? - Chemical etching is not a term many people associate with the production of metal products; in fact it is normally reserved for circuit board manufacture. The etching process can be thought to work in the same way for both process, just change the substrate for sheet metal. A few simple questions can normally determine if etching is something that applies to your company: Do you use any metal work in any of your products? Is any of this less than 1.5mm in thickness? Are these products based upon bespoke designs and not off-the shelf items? If you are involved in the design, use or purchasing of any metal products and can answer yes to the above, then there is a high probability that chemical etching is a service that would apply to you. Using this technique Qualitetch Components are able to provide a sub contract manufacturing service for any metal product under 1.5mm thick. By using a combination of tool making, plating, heat-treatme By Tom McGrath (31/03/09) ... more

Cu salt contamination - We have some PCBs with Cu salts contaminating push button contact areas. There is also uncleaned flux in the same area. We are measuring high impedance across the contacts which is sufficiently low (50K) to trigger the button circuit. Humidity seem to aggravate the problem. Non-abrasive clean solves the problem but this might be only removing the moisture. Does anyone have experience of a similar nature? By Colin Sansome (02/08/10) ... more

Compact and mobile low power temperature sensor device with integrated GPS and GPRS - We are seeking a compact and mobile low power temperature sensor device with integrated GPS and GPRS. Battery life should be at least 7 days before recharging is required. Should also have an "airplane mode" i.e. will not transmit whilst on plane but should be able to store temperature readings whilst in this mode. This could possibly be done with a motion sensor and/or air pressure sensor. Should also be able to take and store temperature readings every 5-10 minutes for at least 7 days. Initial quantity is expected to be 500 units. Please contact: Colin Balfour, Traak Systems Ltd e: colin.balfour@traak.com t: 0131 478 4784 By Colin Balfour (03/04/09) ... more