Homebrew PCBs

Hi,

remember when i whined a wile ago that i have broken my nice hydrometer  
pipette (a huge eyedropper where the hydrometer swims inside and you  
simply suck etchant in with the rubber ball.)

Well, when looking how to get my bubbler going better i discovered a nice  
1.1 to 1.325 hydrometer, 0.025 resolution, meant for measuring car  
batteries. At the tools shop, for only 2eur or so, with pipette and rubber  
ball!

There's no easier or cheaper way to get your density measured. Ok quality  
(glass), accuracy unknown but could be tested against scale if required.  
Should be available in any car tools shop. There are also similar things  
made of plastic with a pivoting needle and a scale, not sure about their  
accuracy but the resolution is less so i chose the trusty hydrometer.

Oh well, the bubbler is still ???

ST