Build Your Own Dummy Load! 250w 50ohm

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need dummy load? build one. here is how.
How to make a Ham Radio RF Dummy load
get your resistors here: www.pcs-electronics.com/power...
material used in the video: 250W resistor, spacers, so239 connector, screws and old heat sink.
you can also use N connector, it will also fit directly to 250W resistor holes.
#dummyload
#diy
#pcselectronics

Опубликовано:

4 апр 2019

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Комментарии : 25

@PCSelectronics 3 года назад

Hi power resistors are on stock for your projects. Making a dummy load hasnt been so fun until now. Make a dummy load with 25, 50, 75, 100 ohms...

@ajm6409 4 года назад

Great idea and well executed. I am thinking two 100 ohm resistors in parallel would provide better heat dissipation and more support for the SO-239. Thanks!

@user-id1bo7me4m 3 года назад

Thank you!

@gabrielM1111 3 года назад

Hey the thin tab on mine broke flush off while I was wiping some heat grease off. Any ideas what to do? Thanks

@PCSelectronics 3 года назад

sorry to hear that. there is nothing you can do. Resistor has to be changed.

@gabrielM1111 3 года назад

@@PCSelectronics i fixed it by removing the top white slice with the lettering and soldering a thin tin tab to the what was left of the broken tab then crazy glue the slice back on top. Resistance did change however from 51 ohm to 58 ohm. tested it on my cb radio & amp outputting 240 watts. No problem. I have it mounted inside a metal electric outlet box with a metel cover and 4 holes punched out. Straight Solid copper wire from resistor to center of pl259 on the opposite side of it. Would have ordered a new one but it take a month for delivery from China

@PCSelectronics 3 года назад

@@gabrielM1111 great news.

@s56a 3 года назад

Remove top ceramic cover and sold thick wire on the edge!

@PCSelectronics 3 года назад

@@s56a Mario great advice.

@geraldtraventures9219 4 года назад

Do you have a test video?

@PCSelectronics 4 года назад

i think there is no need for it.

@rizqim4ul4n4 Год назад

i want to make my own dummy load ,but i dont know how to make my dummy load support 0-3Ghz Frequency?pls tell me

@PCSelectronics Год назад

Buy a resistor for 3Ghz. 😉

@rizqim4ul4n4 Год назад

any link pls

@BairdonBassNS 4 года назад

Who is the audio track by?

@PCSelectronics 4 года назад

I forgot :) made the video in movie maker and throw in the free music from yt.

@CurrentElectrical Год назад

Lemon and Lime by Michael Flory- according to Siri

@anderson4954 Год назад

I'm not sure, too hard to make it.

@PCSelectronics Год назад

You can allways buy one 😉

@harrybond007 2 года назад

Would be better in a box, seems exposed, weak mechanical construction

@PCSelectronics 2 года назад

It would be better in a box. Sometimes you just need to keep it simple. But feel free to put yours in a box ;)

@zen_of_I 2 года назад

Ironically, I'm building the exact same thing with a very similar heat sink 😆, although my heat sink is a bit uglier. I'm not sure I can find spacers in my town though. How long of a wire would you recommend between the resistor and SO 239? I've read too long of a wire creates inductance?