From: Garey Barrell 
Subject: Re: [drakelist] Another L-7 Question


Garey Barrell  made an utterence to the drakelist gang
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Kevin -

While it's true that you probably can't overdrive the L-7 with 100W, you 
probably CAN drive it past the legal limit, especially on the lower 
bands.  The power supply and tubes have the dynamic capability, even 
though it wouldn't support key-down CW at those levels.

The ALC from the L-7 is negative going, and is adjustable from the front 
panel.  So you're better off using the ALC and setting it for the legal 
limit or less with a monitor scope.  3-500Z's aren't cheap any more, and 
the difference between 1200 and 1500W is not discernible from the other end.

73, Garey - K4OAH
Atlanta

Drake C-Line Service Manual
http://hr99.home.mindspring.com/R-4C_Servicez/>



Kevin Nathan wrote:

>"Kevin Nathan"  made an utterence to
the drakelist gang
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>Hi All,
>
>I will be driving my L-7, when I get it, with a Kenwood TS-480SAT, maximum
>of 100 watts.  I have been advised by a couple of people that with this
>level of drive, I really don't need to worry about connecting the ALC line.
>I would like to know if there is agreement with this opinion or not among
>owners on this list.  If ALC is recommended, the manual for my 480 says the
>ALC input from the amp is -7V.  Would this be compatible with the ALC output
>of the L-7?
>
>Thanks for your thoughts on both of these questions and very 73.
>
>Kevin :)
>Amateur Radio:  K7RX
>Navy Marine Corps MARS:  NNN0SHS
>  
>
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