--- In TekScopes@..., David <davidwhess@...> wrote:
Just be careful of the pinouts. The Tektronix TO-127 parts are ECB while the TO-220AB and TO-247 parts listed above are BCE. I have not done a serious search for a modern high power part with the same pinout or TO-3 parts (for high power compartments?).
Also watch out that you use a proper insulator for the mounting hole. The Tek transistors had molded plastic to insulate from the mounting stud.