25 Oct
2017
25 Oct
'17
4:06 p.m.
Hello,
the vertical heat sinks for the TO220 with this design are fairly common, I
saw them many times on various boards.
However, as they are simply aluminum parts, you can clean them for sure.
After removing the screw, you could try simply with an hard brush.
If badly corroded, remove the bubbles of oxide with a thin sanding paper,
then you could restore the opaque aspect submerging for few seconds in
caustic sodium solution. Be aware to protect eyes and skin!
Replace the RIFA X2 capacitor!!!!
Andrea