Hmmmm, have you ever tried loading a pair of 3-500's beyond 300 ma and
watched the power? Im talking about a 2500V or so PS.
Misprint or not, it is completely wrong.
Carl
KM1H
----- Original Message -----
From: <Gudguyham@aol.com>
To: <n5tog@bellsouth.net>; <Amps@contesting.com>
Sent: Friday, February 01, 2008 3:29 AM
Subject: Re: [Amps] 3-400
>
> In a message dated 1/31/2008 8:53:41 P.M. Eastern Standard Time,
> n5tog@bellsouth.net writes:
>
> Hello i have a swan amp with 2 3-400 the swan manial say to load it to
> 500
> to 600 mills on the grid, i checked the internet and my manual is like
> the
> others on the net , the bill orr handbook say 142 mills oer tube can some
> one
> tell me if the swan manual is right or what? i just can not believe that
> the
> swan manual 500 to 600 mills can be right can some one help hear..
> Thanks
> Harold n5tog
> _______________________________________________
>
>
>
> Indeed Harold, the manual DOES state that the grid current could be
> between
> 500 and 600, it is NOT a misprint, Even the Swan Mark I and Mark II amp
> manuals say the same. That is a bit high for sure. I would not worry if
> the
> grid current reached 400ma for a pair of tubes, but at that point you are
> going
> non linear, Load the amp a bit heavy to reduce the grid current. Lou
>
>
>
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