Homebrew PCBs

On Tue, 6 Jan 2009 13:03:47 +0100, you wrote:

>This is the one i bought:
><http://cgi.ebay.de/ws/eBayISAPI.dll?ViewItem&item=230309376059>
>I wish it had a scale just for specific gravity, down to 1.0. I don't
>really care about the antifreeze scales.
>
>1.2 to 1.4 is pretty much the range you need, and 1.0 to 1.2 is
>interesting while you grow the bath. Luckily car battery acid operates
>in the same range which gives us easy access to cheap hydrometers.
>

As to hydrometers; it might cut down on mess to remove the "bobber"
from the tube and just drop it into the container and leave it there
all the time. It would also allow one to keep track of concentration
all the time 8:)