From: [email protected] [mailto:[email protected]] On Behalf Of Missouri Guy Sent: Friday, December 12, 2008 4:48 PM To: [email protected] Subject: Re: [Elecraft] easy source of static dissipating work mat?
I haven't done this, but here's some info: I *think* there was a "Hints and Kinks" article in QST quite awhile ago where a guy made a "mat" using some Masonite (tempered hardboard, etc) and a quantity of India Ink. He said (as I recall) that the India Ink has a lot of carbon in it. When applied to the hardboard, it drains off any static (provided it's grounded of course).. Just to throw more meat into the ring..... While building the K3, the instructions never tell you to power up any "bare" circuit boards that are just laying on any mat or bench. For temporary use what would be wrong with, say taking some aluminum foil, and gluing it to "whatever" and grounding the aluminum via a megohm resistor? 73, Charlie, N0TT Genuine O.T.s (I have to admit I've done this) used to make high-value resistors by drawing a line with india ink on a piece of paper. An inch or so of such ink, perhaps 1/8" wide, produced a resistor typically between 10 and 50 megohms - a perfect "grid leak" resistor for a vacuum tube regenerative detector. In my defense, I'll say that I did *not* do this back in the heyday of the regenerative detector as the state of the art. I happen to be interested in vintage circuits and gear ;-) But why bother, with the extremely low cost of either mats or wrist straps - especially compared to what you've got in a K3? Ron AC7AC
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