Date: Tue, 6 Dec 2016 10:21:37 -0500
From: "Paul Christensen" <w9ac@arrl.net>
To: <amps@contesting.com>
Subject: Re: [Amps] Stock up on tubes?
For those of you who have not yet seen this video, it shows some remarkable
cooling progress being made to SS amplifiers. I hope that in the near future,
we'll see more SS amplifiers using closed-loop water cooling.
https://www.youtube.com/watch?v=gLCuWs5SdBI
Pau, W9AC
## The cooling concept works...good.
## I see the 11m ops have discovered the LDMOS devices.
Go to 21.05 and see where he cuts the output coax..slowly..... laying a dead
short on the output, then as he slices clean through... a wide open !
Then puts a screw driver across the center and shield, and draws huge arcs..all
with drive applied. Thats with a 5 kw slug on the output side..and 214-U.
https://www.youtube.com/watch?v=7LiuynU9xSw
Then leaves drive applied..with a wide open. It doesn’t blow up.
Jim VE7RF
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