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"xpyttl" wrote in message ... The 9850 seems to be pretty popular. You can plunk one down on a DDS daughtercard from NJQRP or get one of the Far Circuits boards (although in my experience their quality is a tad spotty). The Tayloe mixer can be fed with a 9854 and that looks like a fun experiment but the 9854 only seems to be available in impossible packages. The packaging is not "impossible" - it just takes some different techniques to do the soldering - read the QEX article on a DDS/PLL synthesiser in the latest issue of QEX and check out the SMT stuff on the ARRL website ... DIPs are all but gone - that is the reality, and other "through hole" parts are getting (and will continue to get more and more) scarce and expensive, as industry has gone to SMT in a BIG way because: 1) it's better (preformance, due to reduced parasitics from leads, also more reliable if done right ...) 2) it's cheaper 3) it allows things to be build smaller 4) it doesn't eat up space on all the layers of the PCB for through holes 73, Carl - wk3c |
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