[Amps] Answer about heat failure

[Charles Harpole]

The answer is TRUE.

All failures of ham radios are caused, ultimately, by heat.

Other suggestions......
-vibration, which causes some component to break which cause other
components in the circuit to over-heat and fail.
-component defect, or component just not installed causes surrounding
components to over-heat and fail.
-operator mistakes which over-heat mis-adjusted circuits.
and finally,
-UPS-caused failures remain a mystery but customer anger is large source of
heat.

Thanks to all who answered or just laughed.  But, don't make me ask "what
makes a tube soft?"


​73, signed in spirit of fun,​

Charly, HS0ZCW