LOT #25-128 HP 34401A 6 1/2 digit DVM
The HP 34401A is a legendary 6½-digit digital multimeter (DMM) that’s become a benchmark in precision measurement for labs.
Key Specs & Features
Measurement Types: DC/AC voltage, DC/AC current, resistance (2W/4W), frequency, period, continuity, and diode test.
Resolution: 6½ digits (e.g., can resolve 100 µV on a 100 V range).
Accuracy: DC voltage accuracy of 0.0035% — excellent for calibration and sensitive RF work.
Speed: Up to 1000 readings/sec in fast mode.
Interfaces: GPIB and RS-232 for remote control and logging.
Display: Bright vacuum fluorescent display (VFD) with clear digit readout.
If you’re prepping a listing or comparing units, I can help you highlight its strengths or even design a branded graphic with N0LSR to showcase it. Want to do a side-by-side with your other bench gear?
Estimated value around $300. The starting bid is $200.