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OK, I'm a glutton for punishment. Quite some time ago I purchased some small chips designed to drive a couple of LEDs at a constant (programmable) current. I was silly enough not to take enough notice of the package to order them in a BGA package. This has spurred me on to try to improve my...

As part of something I'm doing elsewhere I have made a Sous Vide cooker, designed and made a force-displacement device for measuring elastic modulus of material, and cooked some meat for a long time. This thread will contain lots of information about all of these things. You might be...

I am in need of a dummy load to test my Keithley 228 Voltage Current source. (And yes, it does sound like a vacuum cleaner) I need a 100 ohm load capable of 100W, a 1 ohm load capable of 100W, and a 0.01 and a 0.1 ohm load capable of 10A. So my requirements are: 0.01R 1W 0.1R 10W 1R 100W 100R...

So I needed my power meter. It's a cheap Chinese meter that was thrown in with an order from an electronics component retailer here. It's a "CIXI YIDONG ELECTRONIC CO., LTD." branded device also labelled as "Type: EMA-1 V07442". I guess that might mean something to someone who Googles for it...