[sdiy] OTA question

[Oakley Sound]

I built a circuit once that had terrible offset problems. In the end I 
realised it was down to the bit of veroboard being slightly damp. I had 
found the board stashed in the back of a cupboard before I had used it 
and didn't think anything of it. Simply leaving it overnight on the 
bench was enough to get it working properly.

It was only later that year when I used some water washable solder that 
the memory of that particular event came back to me. You see washing the 
SRBP board with water also didn't do the circuit any good until the 
board had well and truly dried out. Which took several hours on a warm 
radiator.

I now keep all my stripboard sealed up in plastic bags. It keeps the 
copper shiny too.

Tony

www.oakleysound.com