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Good dummyload

Kamikaze

Active Member
Dec 27, 2010
318
11
28
59
Bird dummy loads like the ones pictured are all over for sale cheap.

They can take a lot more than the nameplate. The 5-600 watt models play nice at 1500 watts average on with HFRF for hours in a climate controlled environment.
 

ROC1

Active Member
Apr 5, 2008
112
8
28
For lower power stuff I use the MFJ-264. Don't believe the rating you see. that is only for about half a minute or less from a cold start. It will handle 100 watts continuous.

DUMMY+MFJ264.JPG



For more demanding situations I use my homebrew load made from ten 500 ohm, 200 watt watt Globar resistors all mounted in a 12 quart stock pot and filled with silicone load oil. I must admit it is pretty sad when your tubes don't have handles but your dummy load does. :headbang This load is good for 2000 watts in air and God knows how much in the load oil. I figure it's good for 10Kw at least. It has had 4 Kw peak into it for 15 minutes straight and was only just beginning to get quite warm near the top.


dummyloadyt4.jpg



underthelidvv9.jpg



finishedloadnp8.jpg

That home brew unit is something to behold.
 

liquidh8

Active Member
Aug 7, 2011
273
8
28
I had seen something low power using 1 watt resistors, for low power of course. You could use it for your regular ol stock radio.;)
 

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