Hello guys.
I have a little analog symmetric PSU with -12V , +12V and +5V with linear regulators and I have to add a heatsink for the transistors. (TIP2955, TIP31, TIP3055)
My questions :
-may I add ONE heatsink for all transistors (even with regulators for positive and negative rails) ?
-if the transistors back could not share the same heatsink (avoid shorting) , is really save adding a mica or silicon pad to isolate their electrical conductivity ?
-where in the datasheet I can have the information what is the "leg" connected to the plate on transistor“s back?
Thank you !!!