ftg, 4 months ago Got myself some "new" testgear. A classic Palomar #noisebridge #testequipment #surplus #hamradio
Got myself some "new" testgear. A classic Palomar #noisebridge
#testequipment #surplus #hamradio
ftg, 4 months ago Here is it's schematic. Pretty ingenious having that 70pF cap in series with the DUT to make the impedance measurement to work for inductive DUT's as well. The noise source seems quite traditional amplified Zener noise source. Here is a link to a decent quality manual for the RX100 unit: https://www.planker.dk/PDF/Palomar%20Noise%20Bridge.pdf
Here is it's schematic. Pretty ingenious having that 70pF cap in series with the DUT to make the impedance measurement to work for inductive DUT's as well.
The noise source seems quite traditional amplified Zener noise source.
Here is a link to a decent quality manual for the RX100 unit: https://www.planker.dk/PDF/Palomar%20Noise%20Bridge.pdf
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