evening all, hope all is well.
i have a, i hope, simple question regarding mounting fans to heat-sinks and in turn the vibration being picked up from a elec. mic
i am using a combo 5v/12v regulator setup with the 12v being boosted from a 2955 on one board. (not quite up to speed with smp's yet) lm386 mic pre-amp on a 2nd board with a mono tda2050 amp setup
boards mounted to 3/4 plywood with foam gasket underneath
the mic is picking up the vibration from the fan. i believe it is vibration noise anyway. i can disconnect the fan and all is well except unit get a little warm. i can hold onto fan tightly and it seems to diminish somewhat tried moving further away but still mounted to same board, same thing i added foam underneath boards thinking it would help deaden the vibration noise. i added some phish paper between fan and heat-sink to help minimize vibration also. should i try foam instead???
if anyone has more suggestions or corrections for me to try, i am open for ideas.