Subj : Removing resin from sealed 49:1 unun box
To   : All
From : Boris Gonev
Date : Wed Jun 18 2025 21:24:03

Hi All,

After I do not know how many years, I'm back on FidoNet
So, back to the primary topic:
Recently I've purchased a 49:1 unun from a manufacturer, but I am not satisfied
of it's performance (compared with another 49:1 transformer, the SWR is notably
higher). Therefore I plan to dissassemble it completely and use the ferrite for
another project, but the main problem is that the ferrite inside the box is sea
led with a resin. I would like to hear your opinions or experience, how to safe
ly remove the resin without damaging/destroying the ferrite ?
 
73 de Z32X

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