Does the schematic in the picture work with these powersupplies from China? Both are rated with 5V but one with 20 amperes and the other with 2 amperes.
If it will not work what would make it work or what else would you recommend?
I need just a little current and at least +-2.3V for an op-amp which is R2 in the picture. For R1 I need high current with +5V.