Homebrew PCBs

Thanks Stefan.  This is the first time I've heard not to use a heater.
 I recall reading somewhere to heat the CuCl solution so its a little
confusing.  I looked for the page that said that but couldn't find it
since I didn't bookmark it.  It might have been one that talked about
using CuCl salt, though.

I guess technically, this is HCl etching at first and then CuCl.

A How-To for HCl and H2O2 etching would be very useful.

Phil

--- In Homebrew_PCBs@yahoogroups.com, "Stefan Trethan"
<stefan_trethan@g...> wrote:
...
> 
> NO DO NOT USE A HEATER!!!!!
> The boiling point of HCl is VERY low, and even below the fumes increase
> dramatically with heat. I experimented with that and don't want to
repeat
> the experience. Use a bubbler or mecanical movement/oscillation of the  
> board.
> I'm still wondering if high frequency vibrations or even ultrasonic
would  
> be a
> good idea.