I know how to do it really cheap and easy under 2 amps. Have to think on this a bit. I have used hot water heating elements and coils of wire (in a bucket of water) for high wattage resistors but obviously not constant current.
From: TJ Trout via Af Sent: Wednesday, December 31, 2014 12:11 PM To: af@afmug.com Subject: [AFMUG] Dc electric load ? Chuck ? Anyone know of a inexpensive do it yourself way to make a dc constant current electric load for testing power supplies, lithium batteries , etc ? Looking for something maybe 2kw+ and the cheapest premade thing I can find is $3500. Maybe I'll just use a carbon pile load but that will be much less accurate.
