Hi Guys,
Lately i've been having some weird things with my EQN,
i had same things some time after building tem, and
recognised i had forgot to put one of the jumpers on the Output
transformer of one module, and had the both EQN's fitted apart in the rack afterwards,
so i tought that was resolved....
Anyway, today i have two EQN next to each other, and i noticed same weird
oscillation noises as before, in the high frequency region, most noticeable on attacks of percussive sounds...
So i said maybe transformer too close to each other since i don't remember having this
when a couple of slots away.
So i tried this again today, one in slot 1 and the other in slot 4 for example, (all other stuff out in there just the EQN's)
Weird oscillation noise reduced, but as soon as one of the modules is out, no more oscillation at all,
well maybe still but can't hear it then....and one out or the other, same same, i tought one would cause the other etc...
Seems it's not the case.
When back close together, the Noises get back....
Kind of weird and i'm a little unsure about the symptoms, the units work as suppose to tough.....
I'll try to flux clean all the board as i only did this on the opamps... (minor trooblshooting) And try again,
but i don't think it will be that easy.
And i'll push the testing a little more when i have some time this week end....
EDIT: And i'll record a sample of what i'm talking about...
But any toughts on why? And what i could check...
Thanks a lot