Lundahl moving coil stepup calculator
Description:
If you want your moving coil pickup to "see" into the right impedance load you may have to place a resistor on the secondary side of the transformer. My brother has made a calculator you can use to calculate this resistor. The calculator is partly based on a spreadsheet made by www.kandaudio.com and can be used with all Lundahls MC stepup transformers.
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In this example we want to know what the pickup impedance load is without a resistor @ 24dB with the LL1931 (place a tick in no resistor in parallel). This is the way I use the LL1931!