Good dummyload

[Mr Clean]

What do some of you use?

 

[KE5MC]

Good for me

Diamond DL30A

Fits my needs and expectation. I think MFJ makes one that looks like it. Air cooled with fins, pocket sized.

Not clear in most on-line adds what the power handling is. From the included Japanese/English insert.

15W Continuous
20W 5min. on/ 5min. off
50W 1min. on/ 3min. off
100W 30sec. on/ 5min. off

50ohms

VSWR 1.15(DC-500MHz)

Connector PL-259

Dimensions: 30mm dia x L75mm

What do some of you use?

 

[AudioShockwav]

Old Heathkit Paint can load.
MFJ makes one nowdays.

73
Jeff

 

[Captain Kilowatt]

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.

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.

 

[Mongoose]

I made a few of these and the work great. I put around 50 watts through it with no problems.

Salt Water Dummy Load

 

[mackmobile43]

 

[flush]

This is my big one. I called to get info on this one and they said it could do a lot more than the 600 for shorter times. 600cw all day.....

 

[HomerBB]

Good dummyload? my brother-in-law in a wheelbarrow.

I use a homemade salt water dummy load.

 

[CroMagnum]

I use one of these I found on eBay:

I modified mine by swapping the N-connector for an SO-239 and added some little rubber feet. 250 Watts continuous in free air for $30 delivered is not too bad.

 

[KW9W]

MFJ 949E - Antenna Tuner w/ built-in dummy load. It's good to have two accessories built into one box!

 

[GnG8d]

What kind of power are you trying to dissipate? Knowing that will focus your options.

 

[Mr Clean]

Would like something capible of 1000 watt avg 3000 pep

 

[mackmobile43]

Would like something capible of 1000 watt avg 3000 pep

Birdman Tim

 

[GnG8d]

Would like something capible of 1000 watt avg 3000 pep

Take 2 MFJ264 loads and use a 75ohm cophase harness to run them in parallel. Or, just buy 4 of the resistors only from MFJ and run the 4 in series-parallel submerged in transformer oil, that ought to be good for close to 10kw and cost less then $300 or so.

 

[Peddler]

Palstar.com: DL1500 1500 Watt Dummy Load

Not big enough but available $75.00 shipped