Electronics > Projects, Designs, and Technical Stuff

Dummy making a dummy load box

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tkamiya:
I just use regular incandescent lights.  Parallel a few and it can take quite a bit.

Only thing is, it's ohmic value changes depending on how much you put in it.  But if you want a dummy dummy load, it's cheap and parts are widely available.

schmitt trigger:

--- Quote from: not1xor1 on December 12, 2018, 08:32:41 am ---this is dummier than yours   ;D





--- End quote ---

Nice looking faceplate! Love the voltage/current labels, too.
 :-+ :-+

I wish I had half your skill.

Gyro:
It's worth keeping an eye out for 'old school', (school sometime literally), linear slider lab rheostats.  They make excellent resistive loads. One in my collection is a Zenith 3R3 @10A - that's 300W at 30V. Not only will it take an awful lot of power (even more with a small fan blowing across it) but it makes a great workbench heater in the winter.

Avoid the Chinese round potentiometer style ones, they don't have enough surface area or full current wiper rating.


Edit: My set comprises 3R3 @ 10A, 16R @ 4A and 135R @ 1.4A. Enough to cover most eventualities.

battmyrne216:
You have inspired me to make a big power resistor. I plan on also making a 4" 6.5 ohm I like how this turned out.

TERRA Operative:
I see you use the same power rating method I use.

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