P Perry Babin Member Joined 2003 bcae1.com 2019-05-12 4:31 pm #21 2019-05-12 4:31 pm #21 Have the scope ground on the ground for the 12v power supply. Touch the probe to a bare spot on the heatsink. If you see a lot of noise, connect a 0.1uf cap from a heatsink screw to a good ground. Below is one example. Attachments IMG_0853x.jpg 232.7 KB · Views: 59 R RockfordFIx Member Joined 2012 2019-05-12 4:32 pm #22 2019-05-12 4:32 pm #22 or do I check noise by scope lead ground on output negative and scope lead on heatsink? Prev 1 2 First Prev 2 of 2 Go to page Go Status Not open for further replies.
Have the scope ground on the ground for the 12v power supply. Touch the probe to a bare spot on the heatsink. If you see a lot of noise, connect a 0.1uf cap from a heatsink screw to a good ground. Below is one example.
R RockfordFIx Member Joined 2012 2019-05-12 4:32 pm #22 2019-05-12 4:32 pm #22 or do I check noise by scope lead ground on output negative and scope lead on heatsink?
