[Amps] class "A" RF amp question

[Bill Fuqua]

Plate modulating a grounded grid amplifier is a bit difficult and if you 
don't modulate the driver you can fry the grid on the negative modulation 
peaks. When the plate voltage is near zero all the drive power goes to the 
grid.

73
Bill wa4lav



At 02:37 PM 11/8/2006 -0500, Gudguyham at aol.com wrote:
>
>In a message dated 11/8/2006 2:29:25 PM Eastern Standard Time,
>rbonner at qro.com writes:
>
>
>I'm  surprised more AM operators haven't built modulators to add to things
>like  AL-1200's etc and plate modulate them.
>
>
>
>
>Many years ago after I got rid of my plate modulated Viking Ranger and got
>an FT-101 I used to run Am with it but if the plate meter flickered higher 
>than
>  the resting carrier it was flat topping.  the only way to fly with AM is 
> to
>modulate the amp as well.  So Bob I agree!   Lou
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