HP 4194A

I am not familiar with the HP 4194A.

However, if you are looking for a PC oscilloscope, check the sites

Aidan Grey

HP

Aidan, *explitive deleted*. 4194A != oscilloscope. Try google first!

The 4194A is an "impedance analyzer". You may be able to "fake" what it does with an FFT card, sig gen card and a directional coupler but then you'll need to worry about calibration and accuracy.

If you have gelt, find (rent, buy, borrow, whatever) an Agilent 4294A which does pretty much everything the 4194A did but has LCR meter-like fixturing and a spectrum analyzer-like UI. It's much easier to use than the 4194A.

MM

It will be hard. I used a GageApplied PCI DAQ card to bulid a impedance analyzer. It only works well above 10kHz. I recommend you to try PXI chasis with arbitrary wave generator and DAQ card.