Most newer devices I'm using like FPGAs come in PQFP packages with 0.5 mm spacing so I'm looking around for a suitable microscope to help with assembly. A boom-mounted stereo zoom microscope would be ideal, but they are quite expensive, even second-hand on Ebay, so I'm thinking of buying a low-cost stereo microscope and making my own boom mount. I don't need as much clearance under the objective as the expensive units offer, so I thought that something like the Konus Delta unit here (bottom of page): http://www.sherwoods-photo.com/konus_microscope/konus_microscopes_fs.htm at 79 GBP will be adequate. The 20x magnification is ideal for my purposes. I can manage all the other parts like 0805 Rs and Cs and chips with wider spaced leads (like 0.65 mm) without any problems using an ordinary bench magnifier. Has anyone got any other suggestions. I don't make these PCBs at home, of course. Leon -- Leon Heller, G1HSM Email: aqzf13@... My low-cost Philips LPC210x ARM development system: http://www.geocities.com/leon_heller/lpc2104.html
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Microscopes for assembly
2003-12-21 by Leon Heller
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