[Boatanchors] Suppressor grid modulation

[Jim Haynes]

On Wed, 27 Jan 2010, Al Klase wrote:

> In addition, you need a pentode with the suppressor grid brought out to
> a separate pin, as opposed to being internally connected to the cathode.
>
This ticked a faint memory of some article about tubes, 807 or 1625,
and in some brands there was something connected internally, but in
others there were two separate wires going to the same pin on the base.
So if you had that kind you could carefully remove the base and
separate the two wires and do something useful with it.