[Amps] LDMOS and VSWR

[Jim Miller]

>From several Youtube videos it appears that the LDMOS FETs.are quite
capable of withstanding opens and shorts indefinitely. If true then
agonizing over VSWR and the need for a tuner for the typical case of 3:1 or
less would seem to be unwarranted at least for the FETs.

The next question would be what about other components in the finals and
lowpass filters and how would they react to continuous 3:1? Coils,
capacitors, etc.

How would the power supply to the FET output stage be affected? Would the
excess voltage or current at the amp LPF output cause the signal to degrade
due to starvation of either?

73

jim ab3cv