"Trevor Wilson" wrote in message
...

About that time, I read a
white paper published by RCA where it was claimed that their steel TO3
cases could provide more than 1 million hot/cold cycles without failure,
whereas the aluminium cases used by Motorola could only sustain 100,000
hot/cold cycles.

I remember that, too.

RCA made a ton of money making power transistors for early automotive
electronic ignition systems.