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  1. jims99

    "CircuitMaker 2000" PCB Design program (sch & layout)

    I work for a small company and we need to invest in a new, low cost, schematic capture and pcb layout program. I am considering "CircuitMaker 2000". (costs $995.) Our pcbs are simple in nature - typically no more than 100 components, mostly 2-layer, THT & SMT (future 4-layer?). Program should...
  2. jims99

    42V automotive system. What's the latest?

    I know the industry several years ago was picking up steam in designing future vehicles with 42V system. I recently heard rumors that none of the major car manufacturers are actually doing it soon, and in fact some manufacturers abandoned completely future plans. Anyone has info? Jim
  3. jims99

    Historical question û origin of EIA resistor (mistaken?) values

    We all know the standard (5%, 10%, or 20%) EIA resistor values. For example, the E12 series (10%) are 10, 12, 15, 18, 22, 27, 33, 39, 47, 56, 68 and 82. These values were supposed to have been derived from the mathematical series of equally spacing values logarithmically for each decade(*)...
  4. jims99

    Historical question û origin of EIA resistor (mistaken?) values

    We all know the standard (5%, 10%, or 20%) EIA resistor values. For example, the E12 series (10%) are 10, 12, 15, 18, 22, 27, 33, 39, 47, 56, 68 and 82. These values were supposed to have been derived from the mathematical series of equally spacing values logarithmically for each decade(*)...

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