[ARC5] BC453 on 24V - screen voltage

[Kenneth G. Gordon]

On 10 Dec 2019 at 23:22, Hubert Miller wrote:

> My point is, I suspect you cannot linearly scale down the HFO plate
> voltage as the B+ supply line decreases.

Probably not...but there is, and has to be, some sort of relationship. The B+ voltage on the 
HFO cannot remain at 30 VDC if the main source from which that is derived is 24 VDC, can 
it? "That is not logical, Walter."

> My experience is that it is
> quite difficult, for example, to build a regenerative receiver with a
> plate voltage below something like 6 volts.

Yes.
 
> Very interesting idea, that the HFO plate was maintained at low voltage to minimize frequency drift. That 
> the % voltage change with B+ varying remains the same, while the absolute HFO delta Ep is less. 

Again, yes.

Ken W7EKB