[sdiy] PCB layout question

[Paul Perry]

Bypass caps are like commas in writing, or salt in cooking.

Some people sprinkle them in at random, hoping it will help somehow.
Others, who understand their function, know exactly when and where they are
needed.
Incidentally, while it is true that the bypass caps might not appear to make
much difference at audio frequencies - sometimes if you leave them out, you
will find RF oscillations! Unsurprising, with transistors having 200Mhz
cutoffs.

Is decoupling and bypassing a black art? Yes, if you do it in the dark.

paul perry Melbourne Australia