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Re: [TenTec] Argo V amp keying

To: Discussion of Ten-Tec Equipment <tentec@contesting.com>
Subject: Re: [TenTec] Argo V amp keying
From: Mike Bryce <prosolar@sssnet.com>
Reply-to: Discussion of Ten-Tec Equipment <tentec@contesting.com>
Date: Fri, 9 Aug 2013 10:26:13 -0400
List-post: <tentec@contesting.com">mailto:tentec@contesting.com>
bob,

isn't that assuming that you're using an external keyer?

I designed a small circuit board that will go inside the argo v and will 
provide powermosfet output.

the input is optical coupled to the rig.

the pcb about the size of a quarter.

I'll look around the shack and see if I have a few left.




Mike, WB8VGE
SunLight Energy Systems
The Heathkit Shop
http://www.theheathkitshop.com/
J e e p
o|||||||o 

A man with one clock knows what time it is. A man with two clocks is never 
sure. 



On Aug 8, 2013, at 8:12 AM, Bob McGraw - K4TAX wrote:

> Just remember, making changes of this magnitude might put one in the position 
> of a "very underpaid design Engineer".  In other words, "if one THINKS they 
> know what they are doing, best STOP and ask someone that has done it before 
> successfully".
> 
> I agree with Rick, adding something like this might be fatal to the radio.
> 
> Now lets look at the issue a bit differently.  Why not use your keyer with a 
> suitable driver to key the amp and to key the radio.  It works this way for 
> situations where one does not have QSK keying ability when using the 
> Centurion amp and some other radio that does not have QSK capability.  The 
> key is connected to the amp {not the radio}  and the keying circuit in the 
> amp then keys the radio upon key closure.  The AUX connector on the back of 
> the ARGO V does have access to the PTT for that reason.
> 
> 
> 73
> Bob, K4TAX
> 
> 

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