  We generate compact localized states in an electrical diamond lattice,
comprised of only capacitors and inductors, via local driving near its flatband
frequency. We compare experimental results to numerical simulations and find
very good agreement. We also examine the stub lattice, which features a
flatband of a different class where neighboring compact localized states share
lattice sites. We find that local driving, while exciting the lattice at that
flatband frequency, is unable to isolate a single compact localized state due
to their non-orthogonality. Finally, we introduce lattice nonlinearity and
showcase the realization of nonlinear compact localized states in the diamond
lattice. Our findings pave the way of applying flatband physics to complex
electric circuit dynamics.
