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Subject: Re: [Homebrew_PCBs] Re: Etch safe materials for etch tank

From: Dave VanHorn <dvanhorn@...>
Date: 2004-12-13

>
>disagree, i have an aquarium pump and it is made of rubber and plastic. no
>worries here.

The copper winding in the vibrator has been replaced by rubber and plastic?
The steel electromagnet core also?

Very interesting technology.