In Reply to: What do you make of this? (Impedance curves) posted by pix on March 4, 2017 at 07:44:06:
I simply used a free generator app i my iPhone as a source, using my 300B tube amp driving.
Ur and Uz is multimeters reading AC (rms) voltage
R is a 10,1 Ohm (low inductance) resistor
A second resistor of 10,1 Ohms where used as Z giving a deviation curve used for calibration.
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Follow Ups
- This was the setup - pix 07:51:46 03/04/17 (2)
- Device under test - pix 07:58:22 03/04/17 (1)
- RE: Device under test - freddyi 15:29:38 03/04/17 (0)