Analog electronics toolbox for electronic engineers, hobbyists and students. All the tools in this app are also included in the RF & Microwave Toolbox app: LIKE and Share us: Google+: Feature list: 1) PI, T and L attenuator. 2) Power and voltage converter. 3) Parallel LCR impedance/resonance. 4) Series LCR impedance/resonance. 5) Inductor impedance. 6) Capacitance impedance.