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Re: 5 Watt PA


 

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The shaping and control connections bring on the supply to the PA transistor via the shaping circuit.

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BR

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Andrew

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Sent from my Windows 10 phone

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From: Vernon Matheson
Sent: 27 October 2017 20:53
To: [email protected]
Subject: [QRPLabs] 5 Watt PA

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Hi all,

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I now have the V3.12 controller chip set up and working in my U3S.

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I have the 5 watt PA built with full assembly.

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My question is if I leave the PTT and the Cosine Shaping in a non-active state and no connection between D4, D5, ?etc and the PA ( the 4 control wires ) will the PA ?work?

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Vernon

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