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The ARI-500 Amplifier Radio Interface reads band data from your transceiver so you can automatically bandswitch your ALS-500M amplifier
Power requirements: 120 VAC @100mA
until QRM sets in
or a single wire line/balanced line output
RCS-12 makes it impossible to put the radio on the wrong antenna
AL-811H, HFAMP, 800W, (4)811A TUBES,US120VAC Ameritron_Dummy Load The ARI-500 Amplifier Radio InterfaceOnly 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