Which orientation (1 or 2) is better in terms of radiated stray field?
The audio modules are to the left of the transformers.
The closest audio module is diagonally, down/left.
The big pcb to the left is the PSU
Regards
The audio modules are to the left of the transformers.
The closest audio module is diagonally, down/left.
The big pcb to the left is the PSU
Regards
Attachments
#2 is probably better, but as the distance is large, it probably doesn't matter.
In this kind of situation, the best method is a practical test, using a ~10mH choke as a probe: connect it to the input of a high-gain amplifier, a signal-tracer or a headphone amplifier and listen to the hum it picks up whilst exploring the space inside the case.
The choke must have an open construction, resistor-like or drum type, and you should preferably orient it so that it is tangent to the critical tracks.
In this kind of situation, the best method is a practical test, using a ~10mH choke as a probe: connect it to the input of a high-gain amplifier, a signal-tracer or a headphone amplifier and listen to the hum it picks up whilst exploring the space inside the case.
The choke must have an open construction, resistor-like or drum type, and you should preferably orient it so that it is tangent to the critical tracks.
I thought about testing but too much work to put it together. Wanted to skip that and start mounting right away 😀.
Transformers position first, then the big psu pcb and some smaller stuff (not on the pics) accordingly
What about guitar pickup and amp (high Z guitar combo amp) for testing ?
Transformers position first, then the big psu pcb and some smaller stuff (not on the pics) accordingly
What about guitar pickup and amp (high Z guitar combo amp) for testing ?