I’d like to buy a variable voltage supply like this here. Do you have any recommendations on what should I look for in the device?
If it’s for synth work, you need a symmetrical one, providing both +V and -V.
Or two singles… (the linked one is a single)
Then determine the max Amps you’ll need, and the max voltage. This all depends on what you’ll be using it for.
Yes - I looked at these but shied away as I wasn’t convinced that you could get symmetrical ±12V out of it.
Note that the one you link to is a buck (step-down) converter with a nice front panel, not a power supply. You need an actual power supply to get some power out of it, and maybe an enclosure unless you want to build that yourself
(and if you’re ok with waiting, you can get it for cheaper from Rui Deng’s official store at rdtech.aliexpress.com. They’re also on Banggood, I think. If you’d rather pay some extra to get everything in one package and reasonably fast, Reichelt has complete kits.)
See discussions here
I’d obviously get one that I can get the most out of. What is a good level of max Amperage, Voltage…?