Here we go again!! This was hashed out recently on several e-mail groups and on QRZ.com after I offered some large power resistors for sale there. Kind of amusing subject though...
Yes, Rick, that is correct. Think of the resistor as a heat dissipating device (it is one!) 4 identical resistors can dissipate 4 times as much heat as one individual resistor can. The relationship between heat and watts is linear. That is where the watts go - they become heat. Some guys get confused by the math, but it is VERY logical to me, that no matter HOW you connect them, IF the load is shared equally among the resistors in a resistive load, THEN the total maximum power rating is equal to the sum of all the resistors' individual power ratings. This OF COURSE assumes that the resistors all have the exact same resistance and power ratings individually. Anyone who disagrees with this is barking up the wrong tree! > Please, verify my thinking, again! > > I need a 39K @ 2 watt resistor. I don't have a 2 watt, but I have 4 - 1/2 > watters. If I parallel two then series the pair I'll have my 39K, but will > I have my 2 watts? I say yes, but... > > Someone set me straight.. Am I right? > > Rick/K5IAR > > ______________________________________________________________ > Our Main Website: http://www.amfone.net > AMRadio mailing list > List Rules (must read!): http://w5ami.net/amradiofaq.html > List Home: http://mailman.qth.net/mailman/listinfo/amradio > Help: http://mailman.qth.net/mmfaq.html > Post: mailto:[email protected] > To unsubscribe, send an email to [EMAIL PROTECTED] with > the word unsubscribe in the message body. > ______________________________________________________________ Our Main Website: http://www.amfone.net AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:[email protected] To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body.
