Electronics > Beginners

Power supply advice please (I live in the UK)

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bd139:
The TTi supplies have an output on/off switch. This also acts as a set/run switch so you set the limits with the controls. No shorting required. That annoys me too.

rstofer:

--- Quote from: bd139 on December 07, 2018, 10:24:09 pm ---I would NEVER use an ATX. Those things can shift 100A very quickly very suddenly.  Things just disappear if they go wrong.

--- End quote ---

I bought one of the Sparkfun ATX Binding Post kits and added it to a supply.  I haven't used it but it's around here somewhere.  Fortunately, there are fuses in each output.  I wouldn't use one of the newer 1.5 kW supplies.

https://www.sparkfun.com/products/12867

Here's an open frame +-15V supply that should work well for dual rail op amp projects

https://www.sparkfun.com/products/14101

Here's a neat little breadboard supply for 3.3V and 5V when it comes back in stock:

https://www.sparkfun.com/products/114

rdl:
Nothing wrong with building one yourself. Back in the eighties I built my first power supply from a circuit in one of the Forest Mimms books (with Radio Shack parts of course), and I used it for years. At some point I took it apart to scavenge the enclosure for another purpose. I wish I hadn't now, but I did keep a few of the parts. I didn't realize how bad it was until I came here.



bd139:
That’s sort of what mine looked like although yours clearly had less fires.

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