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[Amps] Why hasn't solid state replaced tubes?

To: <amps@contesting.com>
Subject: [Amps] Why hasn't solid state replaced tubes?
From: w8ji at contesting.com (Tom Rauch)
Date: Mon Mar 3 15:10:18 2003
>    For 1500 watts out it would take say... 4 - MRF154's.  Those probably
> would cost at least $1000 at an OEM level,

It is less expensive and more reliable to use multiple MRF150's. 

First, heat is spread out over a larger area. 

Second, the RF layout would be better

Third, cost goes down because component quantities increase

Last time I looked at wholesale cost, I could buy 20 MRF150's for $1000.

73 Tom
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