Question about IC chips

**jimicrk** · 01-27-2015, 07:39 PM

Been reading a little about power transistors. This is a power board that I believe came out of a battery backup I scrapped. It had 4 solid aluminum heat sinks and there were two power transistors bolted to each heat sink. These power boards usually have either 1 large heat sink or 3 or 4 smaller ones plus several transformers and some large capacitors. Without removing anything I get 20 cents a pound for these heavy boards but if I remove the heat sinks, transformers and large capacitors I get $1.20 a pound. I don't remove any transistors, IC chips or flatpacks because it can devalue the boards.

**Longhairboy** · 01-28-2015, 06:18 AM

Originally Posted by jimicrk

Been reading a little about power transistors. This is a power board that I believe came out of a battery backup I scrapped. It had 4 solid aluminum heat sinks and there were two power transistors bolted to each heat sink. These power boards usually have either 1 large heat sink or 3 or 4 smaller ones plus several transformers and some large capacitors. Without removing anything I get 20 cents a pound for these heavy boards but if I remove the heat sinks, transformers and large capacitors I get $1.20 a pound. I don't remove any transistors, IC chips or flatpacks because it can devalue the boards.

Shoot I had a board like that from a battery backup. I pulled everything of value off and threw it in low grade