PXB_Variable internal resistance

Setting rangePXB10K-500 mΩ to 126 mΩ
PXB20K-500 mΩ to 63 mΩ
PXB20K-1000 mΩ to 315 mΩ
PXB20K-2500 mΩ to 1575 mΩ
PXB20K-5000 mΩ to 5250 mΩ
PXB20K-10000 mΩ to 21000 mΩ
PXB20K-15000 mΩ to 63000 mΩ