Switching Box: Approximately 5 ¼" x 6 ⅞" x 3" and weighs just 3 lbs
Compact all metal cabinet measures 13W x 4 3/4H x 17D inches
or a single wire line/balanced line output
Power requirements: 120 VAC @100mA
AL-811H, HFAMP, 800W, (4)811A TUBES,US120VAC Ameritron_Dummy Load Switching Box: Approximately 5 ¼"Only 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