[R-390] Hosing those 390A

[James A. (Andy) Moorer]

They are made of cardboard, but they are also impregnated with 
something-or-other. Water bounces off them as off a duck's back. The slugs 
themselves, however, are porous. The water doesn't hurt them, but they need 
to be dried out. Better to remove them first. The meters started out 
perfectly sealed, but they often aren't.

James A. (Andy) Moorer
www.jamminpower.com

----- Original Message ----- 

>
> Are not the coil forms of the R-390* made of cardboard? I have replaced an 
> antenna coil due to the cardboard being scorched from excessive RF or a 
> lightning strike. The slug wouldn't pass. Would not water dissolve the 
> coil form? I would think that one would have to go to extreme measures to 
> protect the coils from miosture during a water bath.
>  ..Steve...N8YE
>