AL-811H,SEC- HFAMP, 800W, (4)811A TUBES,US120VAC (FACTORY SEC) Features_Tuning Aid The MFJ-5124Y interface provides power

The MFJ-5124Y interface provides power and control signals between a Yaesu radio and the MFJ automatic tuner

There is also an automatic hold mode for locking in on special frequencies

and TAPR compatible TNC`s

Also read inductance in uH and capacitance in pF at RF frequencies

Features efficient end-loading

AL-811H,SEC- HFAMP, 800W, (4)811A TUBES,US120VAC (FACTORY SEC) Features_Tuning Aid The MFJ-5124Y interface provides powerOnly the AMERITRON AL 811H gives you four fully neutralized 811A transmitting tubes. You get absolute stability and superb performance on higher bands that cant be matched by un neutralized tubes. You also get efficient full size heavy duty tank coils, computer grade capacitors, heavy duty high silicon core power transformer, slug tuned input coils, operate standby switch, transmit LED, ALC, dual meters, QSK compatibility with QSK 5 option and much