23-05-2012, 09:09 PM
Quote, pw_drive: "it is probably due to direct pickup by the regen det tuning coil itself".
Certainly sounds like that's the reason. After all it only takes a few pF of 'hidden' coupling to produce that symptom.
Incidentally, have you retained that R.F. choke in the anode of the R.F.Amp., or did you implement my suggestion of replacing it with an R.F. transformer with a variable-capacity tuned-secondary?
Al.
Certainly sounds like that's the reason. After all it only takes a few pF of 'hidden' coupling to produce that symptom.
Incidentally, have you retained that R.F. choke in the anode of the R.F.Amp., or did you implement my suggestion of replacing it with an R.F. transformer with a variable-capacity tuned-secondary?
Al.
