![\"Allison](\"http:\/\/w1sye.org\/wp-content\/uploads\/2015\/01\/Allison-Phillips-talk-12jan15-1.jpg\")
<\/a>Allison Phillips Presenting to NCRC Members<\/p><\/div>\n
Allison used LT-Spice, a free circuit simulation tool, available from Linear Technology at: \u00a0http:\/\/www.linear.com\/designtools\/software\/<\/a><\/p>\n For her PCB Prototypes, she used another free tool that is well integrated with the DigiKey<\/a> parts catalog, called ExpressPCB<\/a>. \u00a0This CAD software is used to capture a schematic and layout a PCB which is then produced in a few days by ExpressPCB (a set of 3 identical small boards<\/a> costs $51, for example)<\/p>\n Allison reviews Googled oscillator designs<\/p><\/div>\n Coincidentally, the February 2015 QST had an article on rapid prototyping: \u00a0“Make Homebrewed Look Factory Built”<\/a>. \u00a0That article also described using ExpressPCB, as well as other\u00a0companies to produce metal enclosures<\/a>\u00a0and attractive front-panels<\/a>. (Reprinted with permission, February 2015 QST; copyright ARRL)<\/p>\n (Thanks to Dave Brown, KC1AAA, for the photographs)<\/p>\n","protected":false},"excerpt":{"rendered":" Allison Phillips, a professional engineer, gave a walk through of the design, simulation, and production of simple circuits using free tools, during last nights NCRC meeting. Allison used LT-Spice, a free circuit simulation tool, available from Linear Technology at: \u00a0http:\/\/www.linear.com\/designtools\/software\/ … Continue reading <\/a>