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VLF: PA circuit

To: [email protected]
Subject: VLF: PA circuit
From: DK7FC <[email protected]>
Date: Tue, 17 May 2016 20:32:46 +0200
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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:
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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