i'm thinking of building a device to test output impedance, and it will be a mostly "stand alone" unit but with a scope and spectrum analyzer tap output. once i get prototype completed and tested, would anybody be interested in this device in kit form? it will contain an oscillator (single frequency and swept) and amplifier, test load, metering circuitry,and calibration circuits. the device gives a direct reading 1mV/milliohm indication of dynamic output impedance at any frequency from 1-100khz or with a spectrum analyzer can give a trace of output impedance vs frequency.
oh, did i mention that you can use it to set output bias without a distortion analyzer?
oh, did i mention that you can use it to set output bias without a distortion analyzer?