by stan horzepa, wa1lou
contributing editor
january 7, 2005
原文 this week, we surf to web sites that will help you build your own meter for measuring inductance and capacitance.
no homebrewing ham radio operator should be without an lc (inductance/capacitance) meter. and if a homebrewing ham finds him or herself without an lc meter, he or she must build their own or be kicked out of the homebrewer's union. to assist the homebrewer in this effort, there are some pertinent web sites.
if you are a homebrewing ham, you need an lc meter, so why not build one yourself like the
columbus qrp club members did?
phil rice, vk3bhr, has a "surprisingly accurate digital lc meter" at the
web page of the same name. his design results in a direct reading inductance/capacitance meter. meanwhile, ji?í re?ek has an "lc-meter with the 89c2051" [url=http://www.hw.cz/constrc/lc_metr/ ]also at the web page of the same name.[/url]
both meters were inspired by a design of an lc meter, l/c meter iib, which was the brainchild of neil heckt and is available as a kit from
almost all digital electronics. also, check out the tutorial for this kit by ian purdie, vk2tip, at the
electronic projects and electronics tutorial web site. still another lc meter design is the cqrp club project-pic l/c meter from the
columbus (ohio) qrp club. for what it is worth, the builders of this project claim, "for normal amateur radio applications, it is more than adequate and, in some aspects, has a broader range than does the aade lc ii b." your mileage may vary.
i thank raj kumar, vu2zap, for suggesting this week's topic.
until next week, keep on surfin'.
