" Using a 100W light bulb will not provide the required impedance, and will produce inaccurate results and possible damage the transceiver."
True, also - In the "old days" there was no need to specify *incandescent* light bulb. Wonder what would happen with a CFL or LED lamp (do not try this)? The key word is Resistive. 73, Cliff K3LL -----Original Message----- From: Elecraft [mailto:[email protected]] On Behalf Of Matt VK2RQ Sent: Wednesday, March 25, 2015 11:52 AM To: Bob Gibson Cc: Elecraft Reflector Subject: Re: [Elecraft] Fw: Don't have a 50W dummy load For the calibration procedure, you need the load to be a known 50 ohm resistive impedance. Using a 100W light bulb will not provide the required impedance, and will produce inaccurate results and possible damage the transceiver. 73, Matt VK2RQ > On 26 Mar 2015, at 5:25 am, Bob Gibson via Elecraft <[email protected]> wrote: > > HOW ABOUT A LAMP WITH 100 WATT BLUB, THATS ALL US OLD GUYS HAD! 73s Bob W5RG > > ----- Forwarded Message ----- > From: Warren Merkel <[email protected]> > To: [email protected] > Sent: Wednesday, March 25, 2015 1:17 PM > Subject: Re: [Elecraft] Don't have a 50W dummy load > > That kit from OHR looks nicely done. I wonder if the pcb was immersed in a gallon can of mineral oil instead of the included case, how much more power could it withstand then? 5x-10x maybe? I could use the enclosure for something else. Otherwise I'd get a full paint can kit off ebay for about the same $. > > Warren KD4Z > >> On March 24, 2015 5:39:04 PM EDT, Brian <[email protected]> wrote: >> Excellent advice Don. I bought a 100w dummy load kit from OHR. It's >> called the RFL-100 and it's about $40, comes in a very nice cabinet, >> and takes less than an hour to build. It has come in handy more >> times than >> >> I can count. >> >> http://www.ohr.com/rfl100.htm >> >> Oak Hills has some good goods. >> >> 73 de KB9BVN >> Brian Murrey > > > -- > Sent from my Android device with K-9 Mail. Please excuse my brevity. > > > ______________________________________________________________ > 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] > > > > ______________________________________________________________ > 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] ______________________________________________________________ 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] ______________________________________________________________ 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]
