MFJ-934 Antenna tuner in good condition and working order complete with manual (no original box).
MFJ-934 Combined Artificial Earth & ATU This unit combines the features of the MFJ-931 artificial earth and the MFJ-941 antenna tuner. It will match coax feeder, balanced wires or end fed wires. The cross needle meter makes matching easy. If you have problems with getting a decent earth or RF live chassis, here is the complete antenna matching problem solved, all in one box.