WTB Test Load

[djnx]

I am looking to buy a test load from someone or somewhere that has it in stock. It would need to work with bluray and Red Diodes

Thanks
Doc

 

[jayrob]

rkcstr has excellent test loads. Get two of them. That way you can have one set up for a red test, and one for a blu-ray...
http://rkcstr.nfshost.com/
Jay

 

[BluRay]

yeah rkcstr testload are good.




Tommy

 

[robjdixon]

But he isn't selling any more at the moment

 

[WackBag]

Just go to radio shack and get 3 or 4 N14001 diodes and a 1 ohm 1 watt resistor. Solder them all together and place your probes on either side of the resistor. 1mA = 1 mW Do a search and you'll find a diagram.

 

[artix]

Where do I get a 1 ohm resistor? And 6 diodes from the same website?

(The source (Canadian radioshack) sells 2 diodes for $4! And they don't sell 1 ohm resistors.)

 

[Hemlock_Mike]

I use one or two of those Cree style lights removed from host flashlights.
Adjust the voltage as needed with a 1N400x diode.

Mike

 

[WackBag]

Here is a link for the resistors.
http://www.parts-express.com/pe/pshowdetl.cfm?Partnumber=003-1
or
http://shop.vetcosurplus.com/catalog/product_info.php?products_id=8387

Here is a link for the diode.
http://parts.digikey.com/1/parts/412081-diode-gp-1a-50v-do41-1n4001-e3-54.html
or
http://store.sundancesolar.com/recdiod1n.html
or
http://www.vakits.com/product_info.php?cPath=45&products_id=646

THIS PLACE HAS BOTH
http://www.electronicplus.com/search-return.asp?search=1n4001&Submit=Search (This is the surface mount type )
http://www.electronicplus.com/search-return.asp?search=diode&Submit=Search Part number 1n4001
http://www.electronicplus.com/content/ProductPage.asp?maincat=RE&subcat=RE1
Hope this helps...

 

[thebucketmouse]

Yeah I got my IN4001 resistors from radio shack, theyre cheap. And RS also has 1ohm resistors.

 

[artix]

Thanks wackbag! +1 for you! [smiley=thumbsup.gif]

 

[rkcstr]

No, I'm not selling anything right now... I don't really have the time to build and mail out things until after my exams.  I'll probably resume on Nov 24th.

This is the only resistor I found on RS's website which is 1 ohm, though a bit overkill at 10W.  It's also 10% tolerance, which means your measurements may be off by 10%, which at 100mA, could be as much as +/-10mA, if you assume its value is 1 ohm.  If you measure the actual resistance (though most multimeters are not very accurate at low ohms), you can more accurately calculate, but it really may not be necessary for your needs.  I typically use 5% tolerance (higher precision high wattage resistors get pricey), but most I've seen are pretty consistent in their resistance anyway.

http://www.radioshack.com/product/index.jsp?productId=2062290

Here's the diodes, a 25 pack of various 1N00x-series.  You can mix-match for the most part, the different numbers are for their maximum rectified voltage rating (no significant changes in their forward voltage drop).

http://www.radioshack.com/product/index.jsp?productId=2062589

I'm not sure if RS Canada also offers these items, or not, though Artix.