Lazy Senior ) writes:
Ok, the Modern Amp seems to be the way to go with an old AM xmtr, mainly
because they have 160 mtrs (THE band where higher power is almost
necessary)and also I can call a 800 number and get one fast.

No, and I don't know where you got that.

Nobody used a linear amplifier for AM in amateur radio circles.
They either used medium power to start with, or went with a full kilowatt
amplifier with suitable modulator. They made sure they had the space,
and made sure the floor was strong enough.

If your transmitter isn't powerful enough for you, then you find a more
powerful AM transmitter. If that's still not enough, then you build
or buy a full power amplifier or transmitter.

You won't get much power out of a linear amplifier because of
the way things work.

Just because nobody makes a kilowatt AM transmitter these days, and
you aren't interested in building one, does not mean a linear amplifier
is "the way to go".

Michael VE2BVW

Which amp is best for my circumstance?

I have a Ranger running 40 watts AM for drive.I want legal limit AM or
close to it with a modern Amp that can take it and not burn up because
of the duty cycle. Suggestions under $2500 new price please.

Which amp tube would be best for AM - 572's - 811's - 3-500's or the
high gain ceramic tubes?

Thanx

Lazy Senior