G=1/R as I remember it. Yes, I wanted to reply to Alan's method, but I have been away. I wanted to re-read it to see if he allowed time to determine if a cap was leaky first. It was a clever idea. I have two Simpson's so I should be able to duplicate the test, if I can round up exposed metal pans.
I bought my anti-static mat online. I'm at a loss concerning specs. I file everything, but after doing so for more than 50 years, things aren't found quickly. I don't remember receiving specs, either. Static discharge is an on-going concern for me. I humidify in the winter, and try to stay around 40%. I keep a grounded wrist-band around a tin breath mint container on the table beside my recliner for watching TV. When I stand up, I touch the tin to discharge myself. Otherwise, I zap my video equipment. Humidifying helps, but it's no guarantee. At my workbench, I have a four outlet metal box that is grounded so that I can touch it regularly to bleed off any static build-up. I can be 'sure' that it is grounded, but I have to 'trust' that my wrist strap and anti-static mat are. Maybe I'm a 'belt and suspenders' type of guy. Dick, n0ce On 9/20/2016 12:41 PM, Fred Jensen wrote: > Simplest way I know: Conductivity = 1 / Resistance. All you need is a > slide rule. :-) But seriously, > > Alan's method ... charge a capacitor to a known voltage, discharge it > through the mat to a lower voltage measuring how long it takes, and > use the RC time constant to calculate the resistance ... is about the > simplest and maybe the most ingenious. > > 73, > > Fred K6DGW > - Sparks NV DM09dn ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [email protected]
