Actually, the conversion is easier to remember than those two formulas. The two scales coincide at -40 degrees. So for the conversion (either way) first add 40. Then if the conversion is from Centigrade to Fahrenheit multiply by 9/5 (you will be going to a greater number), but if the conversion is from Fahrenheit to Celcius, multiply by 5/9 (because the result will be a smaller number). Finally, subtract 40 to get your result.
The skeptical may try several passes with their remembering when to add or subtract 32 degrees, but this formula always works. 73, Don W3FPR On 4/26/2012 10:10 PM, Fred Jensen wrote: > On 4/26/2012 4:26 PM, W9HAK wrote: >> I have a new solder iron that is temperature controlled in degrees >> C. What temp should I set the iron for work on the K3? I am using >> 60/40 rosin core, small diameter solder. While using solder wick to >> clean out the holes from the 12 dc mod kit I used 300c and dipped the >> wick in solder flux. I pulled the solder wick across the land when >> the solder was liquid, it cleaned the holes on the first pass. > F = 32 + (9 * C) / 5 > C = [(F-32) * 5] / 9 > > 73, > > Fred K6DGW > - Northern California Contest Club > - CU in the 2012 Cal QSO Party 6-7 Oct 2012 > - www.cqp.org > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
