In theory there is enough current supply to power the amplifier and 3 pedals (overdrive, distortion, tuner).
But when I connect the power supply to the amplifier, it does not turn on.
I have another, 2 A, power supply (that is not "musical"; I got it for my hobby electronics lab) and that seems to be able to power the amp just fine.
Could it be that they badly screwed up the amp rating on the amplifier? Maybe they wrote 750 mA but it needs more than 1 A. It would be a fairly silly mistake, but I presume it could happen. In my books, if the required max currents are less than the current supply, everything should work.
I ask this because I want to power everything (amp and pedals) from a single wall outlet. How can I make it work (and why what I have is not working?).
I am looking to do this on a budget :-D And I am based in the U.S.
FWIW, I am aware of this answer How much power do I need to power my daisy chain
Update: it was the polarities
As pointed out by Tim, polarities sometimes are not compatible; I got myself a
Reverse Polarity Converter Cable 5.5 X 2.1 which I used to bridge one of the DC connectors on my pedal DC power supply to my practice amplifier. With that, everything seems to power on.