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N2CX Accuprobe Plus
The Accuprobe is used as an accessory to a reasonable quality digital multimeter. It provides a DC output voltage that gives a DMM reading calibrated to the RMS value of the Accuprobe RF input. On the LOW range the DC is read directly while the DMM reading is 1/10 the RF input of the HIGH range.
The Accuprobe is AC coupled so it can be connected directly to biased circuits with voltages up to 50V without upsetting circuit bias or inaccurate readings due to presence of DC. Its high input impedance and low capacitance allow it to be used with minimum loading on high impedance low-level circuits.
Accuprobe Assembly Manual (3/17/13 update)
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