Ale.A wrote:The v2.5 is the only choice I have, I guess, because it uses the same components more or less; am I right?
You can use v2.5 or dmitri design or buy a v3.1 kit
Ale.A wrote:The ceramic 100, 220, 470 nF must be multilayer or it's just better?
It's just better, but it's the same.
Ale.A wrote:The rated voltage 25V. If I have 50V is it better, worth, the same? Must I look for 25V?
You can use rated voltage from 10V to 9999V
Ale.A wrote:May I still change the pot trimmer with a cap and a pair of resistor (as said synthex) because the firmware then provide its function, right?
Yes, you can.