Gewikkeld draad trimmers (Algemeen)

door Ouwe Schipper , Sassenheim, 14.03.2021, 09:39 (1137 dagen geleden) @ Pandu Rajan

As far as I remember that type of trimmers always is wax-dipped
Which serves as protection against corrosion. The location where
the connection "A" on your drawings has been soldered is a short,
thin silver plating on the porcelain. The wire spiral starts where
the silver ends
Well, this wax does not give eternal protection, in some cases it
even forms acids - - end of the silver plating....
The capacity of your trimmers might well be pretty far less than
10 pF ; did you measure that?
Nico

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