Return to KLUBNL.PL main page

rsgb_lf_group
[Top] [All Lists]

Re: LF: Re: LF RadCom Articles

To: [email protected]
Subject: Re: LF: Re: LF RadCom Articles
From: "Andy Talbot" <[email protected]>
Date: Sun, 20 Jul 2008 20:05:45 +0000
Dkim-signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=googlemail.com; s=gamma; h=domainkey-signature:received:received:message-id:date:from:to :subject:in-reply-to:mime-version:content-type :content-transfer-encoding:content-disposition:references; bh=zAki2I844+GkFbX2DcR5O6yHuV+yK+gE9mgE4LQpQ4o=; b=p4qHTRP9GpBsULeemoSlI+F72InlYW1Exw03ip9FBj/Qm9oaFWHZRs3hNyRCohD4/k P4VqslXh2Qm47OlLvbPKr9kjYHaS5ATPSyxVLRYW1E43NWdHKx9p71vhBg7KbHEXN/Eo QdULg2CYJtMBXc2O1/ByMG4W3WxPTujjPtqXY=
Domainkey-signature: a=rsa-sha1; c=nofws; d=googlemail.com; s=gamma; h=message-id:date:from:to:subject:in-reply-to:mime-version :content-type:content-transfer-encoding:content-disposition :references; b=D+ou6YrVxQWsMxrpQhRoAY5o9Y/3HEQHvxjIhhU5f6SPdmxe7rXlHewGAtykwTZS+s Y8KITBg69mFnd/FDKDGWmN4jv8z3oic+hXcukuXbsGm4lFCd9Bu0BtxT6mFBpkY0HB/Q jP8I+pScT8gvvdyoPZufhygr7gkSglHqEEkWg=
Domainkey-status: good (testing)
In-reply-to: <[email protected]>
References: <[email protected]> <[email protected]> <[email protected]> <[email protected]> <[email protected]> <[email protected]> <[email protected]>
Reply-to: [email protected]
Sender: [email protected]
Radcom redraw all diagrams anyway - and now with wiggly resistors.
Theyt tend to leave the text alone unless there are glaring errors or
bad English, so it looks as if you could be onto a winner.   Gives
Giles a shout.

Andy

2008/7/20 Ken <[email protected]>:
> Hi Andy.
> A simple L C L circuit as described in the Solid State Design for Radio
> Amatuers Book, but I made the 'C' variable so I can tune it up in a similar
> manner to that of  PI tank circuit. I dont have any CAD for diagrams, all
> the pcb artwork was done by hand, I had a bit of techniacl smoke with the
> first PA a few dead power MOSFETS on the shack floor, but a chat with Chris
> G3XIZ and it was sorted out. Technical writing is ok as I used to write
> technical specifications and technical trial reports at BT.
>
> 73
>
> Ken    M0KHW
>
> ----- Original Message ----- From: "Andy Talbot" <[email protected]>
> To: <[email protected]>
> Sent: Sunday, July 20, 2008 6:44 PM
> Subject: Re: LF: Re: LF RadCom Articles
>
>
>> Send it in - sounds just like the sort of simple 'weekend' article
>> several technical editors have been asking for.
>>
>> btw.  By LCL output stage, assume you mean a lowpass Tee network?
>>
>> Andy G4JNT
>> www.scrbg.org/g4jnt
>>
>> design
>>>
>>> and build our own equipment, but do not submit it for possible
>>> publication
>>> because, state of the art technology it is not, the design is not
>>> particularly elegant, and the Technical Editor and the more accomplished
>>> contributors would fall over laughing when they saw it. But most of these
>>> projects are practical and they work. I work on the KISS (Keep It Simple
>>> Stupid) principle, don't use three components when one will work just as
>>> well. My 500kHz TX does not have any fancy CW sidetone circuit on
>>> transmit,
>>> just a piezo buzzer wired across the keyed 12v line to the driver board,
>>> the
>>> most complicated bit is the LCL output stage, which delivers 23W into a
>>> 50ohm dummy load and 900mA up the antenna, the TX/RX switching is like
>>> the
>>> old days, a simple toggle switch.
>>
>>
>> --
>>
>
>
>



-- 
Andy G4JNT
www.scrbg.org/g4jnt


<Prev in Thread] Current Thread [Next in Thread>