[Boatanchors] Amp Question

[msix at nmia.com]

If one wanted to put idling bias on the grids, wouldn't they need to be
off ground for DC?
73 John W7ZFB

On Mon, 31 Jan 2005, George KB2Z wrote:

> This one is a bit off, but would anyone have an answer to why 2x3-500
> amplifiers in gg configuration sometimes have 1,2, or 3 caps paralleled to
> the grids, some have a choke paralleled to the caps?
> I have seen same series amps done with the caps and coils and without. As
> an aside it looks like Japanese versions of some of the same amps have the
> grids tied directly to ground. Is it a spectral purity FCC thing? I have
> been looking and cant seem to find the answer.
> Thanks in advance, George KB2Z