For the leds I´m using only a board with only the 4007 and share psu. I have disconnected this board for now.
And I am using antistatic arm wrist band and a metal plate on my workbench. All earthed.
Maybe I have got bad 4007s. I have got them from Tayda but I have never had any problems with theirs components before.
Is it a way to testing them?
Øivind