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Topband: preamps homemade ...

To: <topband@contesting.com>
Subject: Topband: preamps homemade ...
From: richard at karlquist.com (Richard Karlquist)
Date: Thu May 1 16:48:01 2003
> 50dB is a heap of TOI, so the amplifier must have some very beefy
> components.
>
> I haven't found an amp with an TOI of 50dB yet, except some
> post-mixer amps
> I built with VHF power FET transistors or high power stud mount CATV
> transistors.
>
> For example, I have a homebrew receiver with a VHF flange-mount 28-volt
> power FET that has a TOI of 54dB, but it dissipates over 10 watts in the
> transistors!
> 73 Tom

The Anzac AM(C)-132 and AM(C)-134 amplifiers have 3OI of +49 dBm with a
power
dissipation of 2.6W.

Rick N6RK

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