Radar generating transistor circuit?

As soon as you disrupt a waveguide, it quits being a plain waveguide, and begins to be some kind of cavity.

About a quarter century ago, I had problems with a waveguide (1.5 by 3 inches) which started arcing over at 800 kW instead of gtransporting the supposed 1500 kW neatly. The problem was located to a transport dent near the antenna feed point.

I pretty much suggested as much without resorting to telling my life story.

They had a patent battle with a Canadian company called Time Domain Systems, and lost. You can find 20 or so of Tom McEwan's patents pretty easily, and some even have full schematics with everyday components.

You haven't stalked me for a while - I thought you'd died.

Worked for me. Right click and saved, then opened fine.

Except that in this context, John Fields is the cockroach.

Wishful thinking is popular. I don't think Ian Fields is any more guilty of it than the rest of us. You - for instance - expect to be taken seriously. I'm not that optimistic.

snip

Except that in this context, John Fields is the cockroach.

It brings a tear to my eye to hear old friends united again. :)

Getting back on topic..................

In the early days of WW2, radar pretty much started about 30MHz and up - before the cavity magnetron was developed, any worthwhile power was hard work beyond about 500MHz, these days some audio transistors can handle the bottom end of the range.

For very low power and detector inputs, UHF band IV/V go up to just under

Then there's the transistors in satellite TV LNBs - somewhere around 12 -

While sorting my downloads, I found a service manual for a solid state radar - it uses a gunn diode - most of the "solid state" is fairly common or garden op-amps.