Homebrew PCBs

Hi,

If you can open it, try to set the thermostat a bit further than the outside
screw end run (it's a guess or trial-and-error adjust...). Or get ride of it
and use one of your own inside the glass tube controlled by external
electronics.

If ferric chloride, 90ºF is good enough. Not as fast as 120ºF, but WAY
FASTER than cold water temperature.
Don't know about CuCl temperature differences.

Nuno T.

> -----Original Message-----
> From: Homebrew_PCBs@yahoogroups.com 
> [mailto:Homebrew_PCBs@yahoogroups.com] On Behalf Of Othello
> Sent: domingo, 6 de Fevereiro de 2011 14:10
> To: Homebrew_PCBs@yahoogroups.com
> Subject: [Homebrew_PCBs] aquarium heater question
> 
> I see that most people recommend to heat the etching solution 
> to around 120 F.
> And I see that most everybody seems to be using thermostat 
> controlled aquarium heaters. Which appear to cut out at 90 F or so.
> 
> So how do people get up to 120F??