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Re: VLF: PA circuit

from [Toru JG1eiQ] [Permanent Link][Original]
To: [email protected]
Subject: Re: VLF: PA circuit
From: Toru JG1eiQ <[email protected]>
Date: Wed, 18 May 2016 07:24:15 +0900
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Hi Stefan,

TU for introducing your Rig & ANT.

It is very interesting.

The circuits is simple but did great job

JG1eiQ

2016-05-18 3:32 GMT+09:00 DK7FC <[email protected]>:
Hi VLF,

JUst in case it is of interest for someone, here's an image of my VLF PA circuit that i'm using in the latest experiments: https://dl.dropboxusercontent.com/u/19882028/VLF/20160517_201732.jpg
It includes the antenna coupling and antenna current measurement circuit.
There will be extensions for an analog phase meter and a circuit for automatically steering the transductor to hold the resonance (automatic variometer). In a few days...

73, Stefan


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