42841A Bias Current Source The 42841A is a bias current source for use with the E4980A or 4284A or 4285A. Th e configured measurement system has the capability to perform DC BIAS current mea surements of up to 40 A in the 20 Hz to 2 MHz frequency range (with the E4980A) a nd up to 10 A in the 75 kHz to 30 MHz frequency range.
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