[Radioroslyn]

Kewl! I had studied that stuff back in the 80's when I got my ham ticket but couldn't quite remember how it works. So if I wanted to add a zener diode to regulate the 9v 50ma filament string what do I need to do so?? It's running about 10v and if it needs to be a little higher I can get rid of the 117Z6 and replace it with a 1N4007. That will give me instant on and boosts the 9v line up to abt 12v.
I don't know this silicon stuff!!!! except for FET's there like tubes.

Terry