Here is an old power board from a Phillips amplifier, with the original transistors still mounted on the heatsink.
IMG_1281 by
SeanB_ZA, on Flickr
BDY20, tightened down till it warped like that. Equivalent to a 2N3055.
IMG_1282 by
SeanB_ZA, on Flickr
Really bent there, but it lasted a long time.
IMG_1284 by
SeanB_ZA, on Flickr
Top was easy to remove, and the inside shows the hermetic seal was broken, but the die still worked.
IMG_1287 by
SeanB_ZA, on Flickr
Even the soldered tabs corroded, but it was working until I stripped it for scrap. Phillips really do some odd designs. This one had linear sliders for all controls, but instead of using a linear slider the designers used a regular rotary pot, and placed a spiral 4 sided extension on the pot, with the slider having a operating arm that rotated the pot as the slider was moved up or down.
