Paul, The 1% resistors on the control board are there to permit correct voltage and current measurements, so they should be "spot on".
But it all depends --- Some ohmmeters will give a false indication at the extremes of their ranges - what range were you using when you measured the 435k resistor? If it was not mid-scale, then change the range and measure again - if you were relying on auto-ranging, switch to manual range and verify. Second question is "what do the color codes indicate?" While there can be errors in the color codes, that is quite unusual. If you have another resistor with a value between 470k and 1 megohm, use that to make a sanity check on your ohmmeter. If that value is also quite different from the value marked on the resistor, suspect your ohmmeter, but if the values track with the color codes on the resistor(s), you can be confident that you have a 1% resistor that is marked incorrectly. If so, send a note to [email protected] and ask for a replacement. 73, Don W3FPR On 11/30/2010 7:57 PM, Paul Agoglia wrote: > I began assembly of our K2 this evening, so we are in the early stages. The > control board assembly calls for several 1% resistors, and it calls for > testing these resistors with an ohm meter. Three of the four checked out > well. The fourth, R9, an 806k resistor, checked in at 435k on one ohm meter > and just over 520k ohms on a different ohm meter. We opted not to solder it > in until we hear whether it will still do the job or should we request a > replacement, or is there another way to test it. > > Thanks > ______________________________________________________________ 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
