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    Rittal has introduced two ranges of guide rails for PCBs which it says can be made to suit any depth of PCB insertion. ...

    Intersil is offering a synchronous buck point-of-load (POL) regulator for low-voltage ICs in rad-hard and high-reliability ...

    We all use a large number of electrical items that work reliably and safely every day. As problems are so rare many people get blasé about the need for electrical safety regulations, but recently I saw some sobering statistics.


    A new Picture Gallery has been added to our index - a look behind the scenes at the Witch restoration project in The National Museum of Computing at Bletchley Park.


    An Engineer in Wonderland - A 74HC74 hysteresis mystery The development 'lab' has moved to the kitchen table as the workshop is so cold that there is liquid nitrogen sloshing around on the floor. And as my 'scope, Dr Frustration appears to be in the house. For two evenings I have been trying to fault-find a breadboard circuit with only four components that is so trivial I almost didn't try it. And am not even sure I am at the bottom of it yet.


    What happened to AT&T and the venerable Bell Laboratories? I know some of you will look at this question and say - AT&T is still around, I keeping seeing ads for all sorts of AT&T stuff. Isn't it the largest cellular carrier?


    Initial debugging complete, I knocked up a pcb in the kitchen. I used CadSoft's wonderful free Eagle layout editor to design the board.


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