[AMRadio] Pi-Net vs Link Couple

bcarling at cfl.rr.com bcarling at cfl.rr.com
Tue Sep 27 08:03:19 EDT 2005

On 22 Sep 2005 at 20:20, Donald Chester wrote:

> A tube
> with as much grid-plate capacitance as the 450TL or 250TH must be 
> neutralised for proper operation, unless it is grounded grid.  Grounded
> grid 
> is not recommended for plate modulated finals.

For all tubes? Please explain...

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