HP 3476B Digital Multimeter The HP 3476B is small portable digital multimeter produced by Hewlett Packard in 1976. It can measure voltage, current, and resistance with an AC frequency response up to 10kHz. The input jacks on the side panel take standard banana plugs. The HP 3476B uses a dual slope AD converter, and has 3½ seven-segment LED display. DC Voltmeter   10mV to 1100V in 5 ranges (auto-ranging or range hold) Auto polarity 10 Mohm input resistance Common mode rejection >100dB at 50/60Hz Floating input 1000V max to ground AC Voltmeter   10mV to 1100V in 5 ranges (auto-ranging or range hold) Average responding rms calibrated 10 Mohm input resistance, 30pF shunt capacitance Common mode rejection >80dB at 50/60Hz DC Ammeter   10mA to 1.1A in 2 ranges (auto-ranging or range hold) Auto polarity 1 to 1.5 Ohms input resistance Floating input 250V max to ground Fused 1.5A input jack AC Ammeter   10mA to 1.1A rms in 2 ranges (auto-ranging or range hold) 1 to 1.5 Ohms input resistance Floating input 250V max to ground Fused 1.5A input jack Ohmmeter   10 Ohms to 11 MOhm in 5 ranges (auto-ranging or range hold) 2-wire measurement Open circuit voltage < 4V 32mA input fuse protection