[SixClub] 600 Watt Nice Home brew 6-meter amp > using GI-7B

[KB0NLY]

The power supply is the biggest factor.  The GI7B is rated for max of 2500v 
at 600mA on the plate.  I know guys that have pushed it to the max and can 
make 600w but I doubt tube life would be that great.

I can get 500w out of mine without a lot of drive, but guys running this 
tube at lower plate voltages can too with more drive.  I wanted the drive to 
be as small as possible, so the radio isn't doing much of the work.  Whats 
the point of having the radio running 100w?  What I have works so im happy!

73,

Scott


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From: "Bill Dzurilla" <billdz.geo at yahoo.com>
Sent: Wednesday, May 26, 2010 2:17 PM
To: <sixclub at mailman.qth.net>
Subject: Re: [SixClub] 600 Watt Nice Home brew 6-meter amp > using GI-7B

> That is a very nice looking amp.  Not sure the power supply and the fan 
> are enough to do 600 watts, even in CW/SSB modes.  The listing mentions 
> 300 watts AM out, only the title says 600 watts.  Scott's page mentions 
> 500 watts with the Yaesu supply.  I'd get a clarification from the seller 
> before bidding.
>
> 73, Bill NZ5N
>
>> Subject: Re: [SixClub] 600 Watt Nice Home brew 6-meter amp
>> using GI-7B
>> To: World Wide Six Meter Club <sixclub at mailman.qth.net>
>> Message-ID: <4BFD6446.9090106 at kd4e.com>
>> Content-Type: text/plain; charset=ISO-8859-1;
>> format=flowed
>>
>> 300W?
>>
>> That should be a 600-750w amp. with a GI-6b/GI-7b
>> properly supplied and driven.
>>
>>  > Richard J. Fiero II W5TFW wrote:
>> > 700.00 for a 300 watt amp ????????
>> >
>
>
>
>
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