MFJ-4118, BIAS TEE,+12 OFF -12VDC, 3 POSITIONS

MFJ-4118, BIAS TEE,+12 OFF -12VDC, 3 POSITIONS

The MFJ-4118 is like the MFJ-4116, but it provides both +12 VDC and   -12 VDC.  It has three switched position settings, +12 VCD, OFF, and -12 VCD.