wax prevents adjusting IF transformers

Bruno Gandolfo · 15. März 2020, 00:12

Dear Radiofriends,

It is often difficult to remove old, dry wax in IF transformers. I would appreciate some feedback on how to remove the wax for calibration.

Cordially,
Bruno.

oldiefan · 22. März 2020, 01:21

Slightly warming with a hair dryer so that the wax becomes soft?

regards
Reinhard

Klarzeichner · 22. März 2020, 16:53

I use to remove the wax which is on top of the adjusting screw with the help of a small screwdriver, which I heated up before slightliy by a lighter.
When the ferrite screw is completely visible, I warm it up with the same hot screwdriver. When it is warm enough, the screw may by turned slowly by an alignment screwdriver - wooden or of plastic, not metal!

BR Stefan

Bruno Gandolfo · 27. April 2020, 01:35

Dear Reinhard and Stefan, thank you so very much by your tips.
Cordially, Bruno.