[Amps] dummy load.

[GGLL]

I think that depending on how many resistors (value and wattage for 
each?) you employ, you'll have a somewhat high stray 
inductance/capacitance, and this will degrade load performance.

Best regards
Guillermo - LU8EYW.

on4kj escribió:

>Hello all,
>
>I am in the need of a 1Kw, or a little higher , dummy load.
>>From my own early business I have still a few boxes ( 2000 each ) of metalfilm resistors on the shelf.
>Thought it might be possible to use them in serial /parallel combination to set up a 1 Kw  50 Ohm dummyload. Since those resistors where delivered on rails of 2000, guess it would not be that difficult to replace the tape by a heavy wire or copperstrips. 
>Knowing that Zt = R + jX and we only need R, jX need to have a value very near to zero. ( not frequecy dependent 
>My question, since I dont dispose of the needed measuring instruments , is there some one out there who had this nasty idee before. What about the jX value of a metalfilm L and C. Did someone messured these values in a real application. I should want to know before going any further, if someone  realised this approach, and what are the results?
>
>Thanks for a shout.
>
>Jos on4kj    ( OR4G Operator )
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