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MFJ-4117,BIAS TEE DC POWER INJECTOR, HF, W/ON-OFF 1-50VDC, 1A The MFJ-4117 Bias-Tee is ideal for running coax to distant devices allowing them to be placed anywhere regardless of power availability. Several MFJ products have a built in Bias-Tee, so the DC / RF coaxial cable can be directly connected to them as well. The MFJ-4117
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