Homebrew PCBs

On Mon, 13 Dec 2004 14:03:09 -0500, Dave VanHorn <dvanhorn@...>  
wrote:

>
> The copper winding in the vibrator has been replaced by rubber and  
> plastic?
> The steel electromagnet core also?
> Very interesting technology.


Haha, of course not.

There is no need at all for the gas to ever reach the parts you described.
I just attached a hose directly to the inlet valve of the pump.

ST

P.S.: it would be very easy to coat the e-magnet in thick epoxy, same for  
the magnet.
There is a gap several mm between them so it would't be a problem. but it  
isn't required.