Regulator for Pre-amp

I am afraid your doghouse will be out of proportion, 5/10 = 2 😱

My dogs are out of proportion. My big Pyr will fit in a small broom closet. The little Corgi fills up the whole bed.

Uh, yeah, some math trouble there.

>> the article says is this device for low signal level sources
Actually, VERY low...
> "You can use this to amplify a very low signal sources."

> I shall discard these preamps

No! Move the capacitor tapping on the lower leg. Omitting the cap may be fine.
 
Aah, a bit late now, I removed the trannies and caps to reuse and threw the boards and resistors in the bin.


I'm in the middle of building a JFET measuring device so I can match JFETs, when I've got that working, I can make some matched pairs/sets and look at JFET based preamp designs, this time I shall consult before selecting a design to build.