AL811X 600W O/P (3) 811A 200/220/240V EXP

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Durham Radio Sales and Service Canada :: Amplifiers :: HF :: AL811X 600W O/P (3) 811A 200/220/240V EXP

AL811X 600W O/P (3) 811A 200/220/240V EXP

The AL-811 gives you powerful punch at a price that’s easy on your wallet. Going
from 600 watts to the full legal limit gives you less than one S-unit increase. The
AL-811 covers all HF bands and modes. Get 600 watts output PEP SSB and 500 watts
output CW. You even get 400 watts on demanding continuous modes like RTTY, SSTV, FM
and AM. The power supply is built tough so you get peak performance year after year.
A Pi-Network tuned input allows even fussy solid state rigs to deliver full drive to
AL-811. A quiet blower pressurizes the cabinet with a large volume of air flow. It
keeps the 811A tube temperature well below the tube manufacturer’s rating - even
with a key down carrier at 400 watts output without the overwhelming noise of
oversized fans. Two illuminated meters give you a clear picture of your AL-811's
operating conditions so you can tell right away if something is wrong. The grid
current meter continuously checks for improper loading. The other meter switches
between high voltage and plate current to warn of abnormal conditions. Special
buck-boost transformer winding that lets you compensate for stressful high line
voltage and performance robbing low line voltage. This makes your components last
longer and gives you peak performance regardless of your line voltage. 12 VDC keying
relay is compatible with solid state and tube rigs. Includes operate/standyby
switch, TX LED indicator. Shipped with transformer installed and wired for 120 VAC.
Draws 8 amps at 120 VAC. For lightning fast QSK operation, use the optional
external QSK-5, electronic PIN diode switch.