MFJ-907,RF TRANSFORMER, VARIABLE, 2-50 OHM, 1kW

Multi-tap variable RF transformer matches low impedance (2-50 Ohms) of mobile antennas (ham sticks, screwdrivers, etc.) to 50 Ohm transceiver.  11 impedance ratios.  Use in reverse to transform high impedances to 50 Ohms.  Handles 1000 Watts.  1.8 to 30 MHz.  SO-239 connectors.