  Non-Hermitian skin effect (NHSE) is a novel phenomenon appearing in
non-Hermitian systems. Here, we report the experimental observation of NHSE.
Different from the previous non-reciprocal circuit implementation scheme using
logic components, we construct our one-dimensional (1D) circuits using linear
components only. Besides, we achieve the non-reciprocity by proportionally
varying the parameter value of the components. By measuring the voltage
response of each site, the information of eigenstates can be mapped out. The
results show that the voltage response is always larger on one end of the
circuit no matter on which end voltage driving is applied, indicating clearly
the presence of the NHSE. Furthermore, we also simulate the interplay of NHSE
and Anderson localization (AL) when additional disorder is introduced. Upon
increasing the disorder strength, we observe the transformation from the skin
effect phase to the localized phase. In the regime of skin effect phase, the
eigenstates are all localized at one edge while eigenstates are affected by the
voltage supply input in localized phase. Our findings unveil a possible new
route for simulation of topological phenomena in non-Hermitian systems.
