Dual supply with current limit

Hey,

I need a dual power supply for experiments with opamps. In order to not 
blow up my circuits too early I'd like to have some way to adjust a 
current limit.

The LM317 (and LM337) datasheet shows a current limiting application 
using a resistor from output to adjust pin. Based on that I also found 
the following circuit, which seems to serve my purpose pretty nicely:

https://www.eeweb.com/adjustable-current-limit-for-dual-power-supply/

The thing is, that the current sensing resistor (as they call it) at the 
output of the regulator gets the total current. That requires a special 
low value, high power part that I don't have in my collection and that 
seems bulky and expensive.

Can someone point me to alternative designs that don't require power 
resistors and are still similarly simple?