Thanks Mike - now I understand where you're going with this. But why use a Nuvistor - especially as you don't have a socket for it? Why not simply use a 6C4 as shown in that cct. - which, incidentally, looks remarkably similar to that of the Heathkit G.D.O. model GD-1U?
As for your variable cap., I'll hazard a guess that the AM section has a capacity swing something like 20 pF → 360 pF; not sure about the VHF section, but I suspect you won't be using that part.
Al.
As for your variable cap., I'll hazard a guess that the AM section has a capacity swing something like 20 pF → 360 pF; not sure about the VHF section, but I suspect you won't be using that part.
Al.






