[R-390] in rush current limiters

[Helmut Usbeck]

>
> Question, then: what is the regulating current of this curious tube?

It's not a tube, it's basically a FET diode.  They come in differant
values but not as high as .3 amps which is what is needed.

> Three-terminal regulators can be configured as constant-current
> devices.

I know and what it's being used for is overkill.  Why reconfigure a
voltage regulator, three- terminal current regulators are also around.

-Helm.