While I don't use my L4 on AM, I do use it for contesting. I use two muffin
fans sitting on the top of the cabinet, one directly over each tube. These are
the lower speed fans so they are fairly quiet but they still do a great job of
providing additional cooling. They are positioned to blow the warm air up.
73, Stew K3ND
________________________________
From: K9sqg <k9...@aol.com>
To: d...@martineer.net; k7...@comcast.net; drakelist@zerobeat.net
Sent: Monday, August 15, 2011 12:12 AM
Subject: Re: [Drakelist] L4-B on AM
At one time, there seemed to be great interest in the L-4B because it could run
1 kw input on CW, RTTY, and AM. A lot of other amps were rated at, for example
1,500 watts input on SSB but maybe only 700 or so on AM because they didn't
have power supplies, cooling, etc. for continuous duty or high duty cycle
modes. I'm sure there are some users out there, maybe on some of the AM nets,
that have direct experience. Note, however, the top of the cabinet, especially
over the tubes, gets quite warm in such applications...
-----Original Message-----
From: Don Cunningham <d...@martineer.net>
To: jsloss <k7...@comcast.net>; drakelist <drakelist@zerobeat.net>
Sent: Sun, Aug 14, 2011 8:08 pm
Subject: Re: [Drakelist] L4-B on AM
I too would be interested in the L4B's
performance/use on AM. I may use the DX-60 or T4XC as the driver, but same
question, hi.
73,
Don, WB5HAK
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