This is a multipart message in MIME format --03808572-POCO-72572861 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable :: hmmm... you sure it isn't something more like this? Well, it is sort of. Not sure how I got my base measurements mixed up compounded by my search for a 2A marking for SOT3 BJT which led me to Digikeys incorrect reverse base layout. Why I accepted them rather than my meter readings I can't explain. I've now attached the correct drawing which resolves the mystery. Colin -- cdb, colin@btech-online.co.uk on 11/08/2009 Web presence: www.btech-online.co.uk Hosted by: www.1and1.co.uk/?k_id=3D7988359 --03808572-POCO-72572861 Content-Type: image/png; name="uCbacklight.png" Content-Transfer-Encoding: Base64 Content-Disposition: attachment; filename="uCbacklight.png" iVBORw0KGgoAAAANSUhEUgAAAPIAAADWCAIAAABkN0jTAAAAAXNSR0IArs4c6QAAAAlwSFlzAAAL EwAACxMBAJqcGAAAAAd0SU1FB9kIChYREh7jwXgAAAAZdEVYdENvbW1lbnQAQ3JlYXRlZCB3aXRo IEdJTVBXgQ4XAAAQC0lEQVR42u2dfVAb553Hf8/KrtP7I+l05qZrUxsZYWPa5JI4bXNJc0UrHNuS 7cm1hhnjuZu78GLHOPfHGSTnJhkL5XyXBL9k5mogBYm0lxo8Y5w2Nanjo2iFw3SuN3XaJG0MBCFh D2ZnOp2+/FM7Mc9zfywoQgiZF73siu9nGGa1SOxq96Offs9vn30eJoRGAOQXEg4BgNYAQGsAoDUA 0BoAaA2gNQDQGgBoDQC0BgBaA2gNALQGAFoDAK0BgNYAQGsArTOBmHh9Z5NKJGjwue0/VDv3Mklm kry+cTAaqIotU6Rb8fxChLxMkpm7M+ElDQM4a8BQWrOCf35O9A4Qhfo+ff4frLQ3yDXBtTekkCp2 x5Zf7+fHmh8dD48Q0ZfF5viXKE//1/0fD+K0AWMlIazswP0fD6rh0vqyeZ8zwu5sILLWdAuuvVva 37m+Ov4ld4avh3HegLFya1agsJaXqMxGxMRFhyQzSf6PkhqF9caWD7DV14lUz1omyQ/2bLLbCmMv 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