Dummy load

[sinus trouble]

So i did some testing yesterday and the performance was all good!

60 Watts was no problem with only a gradual rise in temperature over a substantial length of time.

The tests indicate that it could sustain a relatively high dissipation of power, however it takes an equal amount of time to recover from such an application, if not longer!

[radium98]

coolllllllllll sinus , nowadays i have some sinus troubles tooo lol

I do hope that you are referring to Sinusoidal difficulties and have no need to see a doctor!

[alfaeire]

250 Watts 100 Ohms
https://a.aliexpress.com/_m05SKkj

OK, bought 4 of these lads.
Now I wait.. And I might sleep.

Sent from my SM-A526B using Tapatalk

I bought 4, they sent 8.
Just got them this morning.
Ive a nice large heatsink from an elenos here I can mount them to.

Gunna use a chassis mount ntype because I'll never really be testing anything greater than 5 or 600w.



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[BriansBrain]

250 Watts 100 Ohms
https://a.aliexpress.com/_m05SKkj

OK, bought 4 of these lads.
Now I wait.. And I might sleep.

I bought 4, they sent 8.
Just got them this morning.

I have a question for

Is the tab totally isolated from the 100 Ohms ?

Or is the tab one connection of the 100 Ohms ?

BTW: have you finished yours, if so have you a pic

Thanks in advance

[rigmo]

https://www.nonstopsystems.com/radio/fr ... _dummy.htm
parallel serial connection of resistors give you 50R

[BriansBrain]

https://www.nonstopsystems.com/radio/fr ... _dummy.htm
parallel serial connection of resistors give you 50R

That design is useless if you can't isolate the heatsink

[rigmo]

That design is useless if you can't isolate the heatsink

and let's bet?

[BriansBrain]

That design is useless if you can't isolate the heatsink

and let's bet?

Totally different

They are isolated tab two leg Resistors

[rigmo]

Totally different

They are isolated tab two leg Resistors

Yes Two types of dummy loads... i buy few and combine to reach 50R....