20W non-inductive resistors

[Heavy-D]

Need two 4 Ohm 20W and one 8 Ohm 20W non-inductive resistors but can't find any online. Does anyone know where to get them?

Thank You,
Mark

[joecarrow]

Series/parallel

You can add resistors in series or parallel to handle the power you need. Here's a place to get 10 watt resistors:

http://www.partsexpress.com/webpage.cfm?&DID=7&WebPage_ID=156

You could use two 8 ohm resistors in parallel to get your 4 ohm 20 watt resistor, and two 16 ohm resistors in parallel to get your 8 ohm 20 watt resistor. I like adding them in parallel rather than series because I can just twist the leads together, and it's easier to arrange on the board.

[Dennis H]

Parallel two 10W resistors to handle 20W. Two 8 --> 4. Two 16 --> 8.

Edit: nevermind, Joe beat me to it.

[Heavy-D]

I knew this was a noob question didn't know how to go about it.

PS: Caps done in series works the same right?

Thanks again.

[Dennis H]

PS: Caps done in series works the same right?

Right although power handling isn't usually a problem with caps. It's more common to use caps in parallel where the values simply add. That's handy to build odd values, like parallel a 15uF and a 2uF to get a 17uF.

[Heavy-D]

Right although power handling isn't usually a problem with caps. It's more common to use caps in parallel where the values simply add. That's handy to build odd values, like parallel a 15uF and a 2uF to get a 17uF.

Thanks again.