Hi technetters, I'm looking at a design of a PC Ass'y with a collar heat-sink for a TO-3. In the specs it is said to have an excellent thermal conductivity. There is no indication of thermal compound to be used with it. With all heat-sink I've used in the past we had to use such compound... shouldn't any used with this kind of heat sink??? Thanks. JF WABTEC CORPORATION CONFIDENTIALITY NOTE The content contained in this e-mail transmission is legally privileged and confidential information intended only for the use of the individual or entity named herein. If the reader of this transmission is not the intended recipient, you are hereby notified that any dissemination, distribution, or copying of this transmission is strictly prohibited.