My first ever project, and also first time doing wood stuff
I really need your expertise on this one.
When i had a unfinished wooden framed cornet 2, it was quiet and
sounded more beatifull than i anything i?d heard on vinyl.
Also got new speakers suitable for tube amps, Living Voice Auditorium 2.
When i finished with the final box, took out the insides and fitted
then in to new frame. There is this really loud humming sound.
The bottom is alumim plate, and underneath the wood top is alumiumplate.
I used Mundorf Supreme capisitors and F+T and some Solen and Panasonic low esr.
Earthing and everything is exactly the same as in the demo version,
even the wood type, same top, same bottom.
I have done all the checkups, went through every tinjoint, tried
diffrent tubes, made sure that all earthing cables are fine.
Meter shows that all the voltages match in 10% tolerance.
Tried diffrent amps, locations, powercables etc etc
- Could this be caused if i accidentaly overheated the the earthing
point on signal input?
- Could it be that the transformer is to blame?
- or what?
The saddest thing is that on demo stage everything was just great, no hum.
Also building or actually allready build identical looking Cornet linestage with same components, just waiting to receive the transformer
If you can think of anything, i?ll try it
