Analog Opamp Multirange Voltmeter

Experimental - not tested- for ideas only 4 range single scale 15 volt panel meter using an opamp for amplification. 1.5V full scale 15V full scale 150V full scale 1500V full scale Resistor and switch network make it possible to have an opamp input of upto 1.5 volts on all ranges . Thus high voltage does not get to the opamp.