Failing resistors in mid 70's Sansui gear

A good friend owns a shop in Austin. He has some interesting info on mid 70's Sansui gear. As a Sansui fan, I thought I would share this.

https://www.facebook.com/pages/Austin-Stereo-Service/175336255846780?ref=hl

pixelriffic09-23-2014 11:10pm

ebm Details Discussions Posts This discussion Message User 9,311 posts 09-25-2014 at 08:47pm Copy Comment URL Report Comment Edit Delete Started with Sansui reciver that i got in Viet Nam.
atmasphere Details Discussions Posts This discussion Message User 11,841 posts 09-26-2014 at 05:44pm Copy Comment URL Report Comment Edit Delete Those look like carbon film resistors in the photo. If carbon films or carbon composition resistor get heat during normal operation, they will slowly decrease in value. For this reason they have to be run at values substantially less than their ratings- no more than 20% dissipation!