From: "tim" 
Subject: Re: [drakelist] Another L-7 Question


"tim"  made an utterence to the drakelist gang
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  I have had an L7 since 1979 when I picked it up new, I also own an L4B. I 
agree with Evan
I as a matter of fact what I do is load the amp to the 500 watt position 
output , in the tune position, I have never run in the SSB position. I would 
say I use about 40 to 50 watts of drive , and this equates ruffly to 
1000Wpep input , plenty of power for all purposes. The tubes in the L7 are 
original .
73 Tim wb8uhz
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From: 
To: ; 
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Sent: Wednesday, March 02, 2005 11:04 AM
Subject: Re: [drakelist] Another L-7 Question


>
> K9SQG{at}aol.com made an utterence to the drakelist gang
> ----------------------------------------------------------------------
> Drake enthusiasts,
>
> From my experience, with three L7s that I own and about 8 L4Bs that I've 
> owned, I have had "different" experiences.  Given that the
tubes are good, 
> and the power supply capacitors are known to be good, I can get 1500 watts 
> PEP out on 40 and 80 meters, the only bands I operate.  I generally run 
> only 900 watts PEP to save the tubes, since the extra 1.5 db wouldn't be 
> noticed on the air anyway.  To obtain that output, I drive it with only 60 
> watts PEP.  If one sets the driver up for 100 watts output, my amps would 
> be over-driven with well in excess of 200 ma of grid current, the 
> recommended maximum (except for Amperex tubes).  Hence, it is a good idea 
> to tune the amp and driver accordingly, and use the ALC if it is 
> compatible with the driver.  Note that the ALC setting will vary from band 
> to band.
>
> Just one ham's experiences.  Enjoy those Drakes.
>
> 73s,
>
> Evan
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>
>
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