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Low loss slug tuned coils -- tunable from the rear panel -- let you optimize performance
MARS/WARC: 80% of full output
dynamic ALC
an ALC SET control
Power goes into the antenna instead of into heat
AL-811HDXCE HFAMP, 800W, (4)572B, EXPORT/CE, 220VAC UHF Low loss slug tuned coilsGet the AL 811HD with 572B tubes AL 811HD gives you the AL 811H with four 572B tubes installed. Get a higher power tank circuit and grid overload protection. Grid Overload Protection protects the tubes from excessive grid current due to mistuning and it protects against excessive drive power. Four 572B tubes give you more plate dissipation than a single 3 500Z tube. AL 811HD gives you 800 Watts output in SSB and 600 Watts for continuous duty in CW,
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