Re: Battery bias directly to grid

In article <43560898.A0E3655F@xxxxxxxxxxxxxxxxxx>,
Patrick Turner <info@xxxxxxxxxxxxxxxxxx> wrote:

>snip<


> >
> > Aha... apparently we *are* talking about different cicuits.
> >
> > Until it was changed several days ago, I had been referencing the T39
> > schematic on this page:
> >
> > http://members.lycos.co.uk/fiultra/T39-KISS-300B-Ultrafi-crct.jpg
> >
> > I was never able to view the other schematic due to unknown browser
> > demons, but its description sounded like that of the T39 input biasing
> > arrangement, which I must say was bizarre, but easily fixable (...and I
> > happen to believe that a good quality capacitor makes a better capacitor
> > than a battery).
> >
> > Carry on...
> >
> > -bruce seifried
>
> Both of Andre's circuits which use battery bias either in the grid or cathode
> circuit
> are NOT prone to switching transients when the gain is changed.
>
> Patrick Turner.

>snip<



goddamn, Patrick, you are one stubborn bloke. Please pay attention.

There are at least *three* versions being discussed, not two:

1. batteries in the cathode circuit.
2. batteries *in series* with the grid.
3. batteries *in parallel* with the grid (grid leak position).

Circuit number three is what I have been talking about. The schematic
was locate at the link I referenced above, until a few days ago, when it
was redrawn to show the batteries in the cathode circuit. OK?

I will send you a copy of said schematic if you need to see it.

Can we move on now?

-bruce seifried
.

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