K3 inside photo

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K3 inside photo

Jeff Stai

Here's a photo I took of the inside of the K3 at Visalia. The tour that follows is from memory,
sorry if I misremember.

http://twistedoak.typepad.com/stuff/k3inside.jpg

The front panel is at the top, and you can see four filters for the main RX behind it. I don't know
what the two daughter boards are. Most of the main board components are on the bottom side.

To the left where the toroids are, are the main RX bandpass filter for the amateur bands.

My understanding is that the sub RX board fits on top of the main RX - but I didn't see that board.

Center back is the heat sink for the 100W amp.

Left back is the KAT3 tuner.

enjoy! - jeff wk6i

--
Jeff Stai               [hidden email]
Twisted Oak Winery      http://www.twistedoak.com/
Winery Blog             http://www.elbloggotorcido.com/

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RE: K3 inside photo

Brett gazdzinski-2
 
Where are all the parts??
Sure seems like a lot of ROOM in there!

thanks for the pix!

Brett


> -----Original Message-----
> From: [hidden email]
> [mailto:[hidden email]] On Behalf Of Jeff Stai
> Sent: Tuesday, May 01, 2007 12:59 PM
> To: Elecraft
> Subject: [Elecraft] K3 inside photo
>
>
> Here's a photo I took of the inside of the K3 at Visalia. The
> tour that follows is from memory,
> sorry if I misremember.
>
> http://twistedoak.typepad.com/stuff/k3inside.jpg
>
> The front panel is at the top, and you can see four filters
> for the main RX behind it. I don't know
> what the two daughter boards are. Most of the main board
> components are on the bottom side.
>
> To the left where the toroids are, are the main RX bandpass
> filter for the amateur bands.
>
> My understanding is that the sub RX board fits on top of the
> main RX - but I didn't see that board.
>
> Center back is the heat sink for the 100W amp.
>
> Left back is the KAT3 tuner.
>
> enjoy! - jeff wk6i
>
> --
> Jeff Stai               [hidden email]
> Twisted Oak Winery      http://www.twistedoak.com/
> Winery Blog             http://www.elbloggotorcido.com/
>
> _______________________________________________
> Elecraft mailing list
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>
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>

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Re: K3 inside photo

KK7P
In reply to this post by Jeff Stai
> The front panel is at the top, and you can see four filters for the main
> RX behind it. I don't know what the two daughter boards are.

The one on the left is the frequency reference, the one on the right is
the synthesizer.  The two short standoffs to the left of the frequency
reference are where the subreceiver synthesizer is installed.

73,

Lyle KK7P


BTW, the bright LED near the crystal filters tells me that either the RF
gain was cranked back or there was a really stong signal being received :-)

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Re: K3 inside photo

wayne burdick
Administrator
In reply to this post by Brett gazdzinski-2

On May 1, 2007, at 10:17 AM, Brett gazdzinski wrote:

>
> Where are all the parts??

There are several hundred SMDs on the bottom of the RF board, and
several boards you can't see  :)


> Sure seems like a lot of ROOM in there!

Not when you add the subreceiver, which has its own BPFs, I.F., and
full set of roofing filters....


73,
Wayne
N6KR


---

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Re: K3 inside photo

W2AGN-2
In reply to this post by Jeff Stai
Jeff Stai wrote:
>
> Here's a photo I took of the inside of the K3 at Visalia. The tour that
> follows is from memory, sorry if I misremember.
>


Gee, just look at all those toroids we'll miss the fun of winding....
---
   _    _    _    _    _
  / \  / \  / \  / \  / \   John L. Sielke
( W )( 2 )( A )( G )( N )  http://w2agn.net
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K3 RX ant in/out

Doug Faunt N6TQS +1-510-655-8604
In reply to this post by wayne burdick
OK, my memory is a bit flaky sometimes.

IIRC, the RX ant in/out connectors can be used for an external
front-end filter, or for a separate RX antenna system.  What else can
they be used for?

73, doug
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Re: K3 inside photo

Tom Arntzen-2
In reply to this post by W2AGN-2
I'll bet you can order a full sett of K2 toroids that you can wind in
between assembly of the K3 :-)

73 de Tom LA1PHA

----- Original Message -----
From: "W2AGN" <[hidden email]>
To: "Jeff Stai" <[hidden email]>
Cc: "Elecraft" <[hidden email]>
Sent: Tuesday, May 01, 2007 7:35 PM
Subject: Re: [Elecraft] K3 inside photo


> Jeff Stai wrote:
>>
>> Here's a photo I took of the inside of the K3 at Visalia. The tour that
>> follows is from memory, sorry if I misremember.
>>
>
>
> Gee, just look at all those toroids we'll miss the fun of winding....
> ---
>   _    _    _    _    _
>  / \  / \  / \  / \  / \   John L. Sielke
> ( W )( 2 )( A )( G )( N )  http://w2agn.net
>  \_/  \_/  \_/  \_/  \_/   http://www.blurty.com/users/w2agn
> check out: http://groups.yahoo.com/group/QRPariahs/
> _______________________________________________
> Elecraft mailing list
> Post to: [hidden email]
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>
>
>
> --
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>
>


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Re: K3 inside photo

RBrigham1
In reply to this post by Jeff Stai
OTOH,
It would cost more but for the nostalgic (or otherwise twisted) builders out there Eric and Wayne could offer a version of the K3 kit where you get to wind the toroids yourself...;-)

Rob
KC6ROC

"Tom Arntzen" <[hidden email]> wrote:

>I'll bet you can order a full sett of K2 toroids that you can wind in
>between assembly of the K3 :-)
>
>73 de Tom LA1PHA
>
>----- Original Message -----
>From: "W2AGN" <[hidden email]>
>To: "Jeff Stai" <[hidden email]>
>Cc: "Elecraft" <[hidden email]>
>Sent: Tuesday, May 01, 2007 7:35 PM
>Subject: Re: [Elecraft] K3 inside photo
>
>
>> Jeff Stai wrote:
>>>
>>> Here's a photo I took of the inside of the K3 at Visalia. The tour that
>>> follows is from memory, sorry if I misremember.
>>>
>>
>>
>> Gee, just look at all those toroids we'll miss the fun of winding....
>> ---
>>   _    _    _    _    _
>>  / \  / \  / \  / \  / \   John L. Sielke
>> ( W )( 2 )( A )( G )( N )  http://w2agn.net
>>  \_/  \_/  \_/  \_/  \_/   http://www.blurty.com/users/w2agn
>> check out: http://groups.yahoo.com/group/QRPariahs/
>> _______________________________________________
>> Elecraft mailing list
>> Post to: [hidden email]
>> You must be a subscriber to post to the list.
>> Subscriber Info (Addr. Change, sub, unsub etc.):
>> http://mailman.qth.net/mailman/listinfo/elecraft
>> Help: http://mailman.qth.net/subscribers.htm
>> Elecraft web page: http://www.elecraft.com
>>
>>
>>
>>
>> --
>> No virus found in this incoming message.
>> Checked by AVG Free Edition. Version: 7.5.467 / Virus Database:
>> 269.6.2/784 - Release Date: 01.05.2007 14:57
>>
>>
>
>
>--
>Jeg bruker gratisversjonen av SPAMfighter for privatbrukere.
> Den har fjernet 76 søppelpostmeldinger til nå.
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>Få tak i SPAMfighter gratis her: http://www.spamfighter.com/lno
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>
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Wish List - K3 with TIVO

KJ3D-2
I know we are supossed to be sending these to Wayne, but I may need a grass
roots movement on this suggestion.

I got back to CW this year, and am pretty rusty.  I also started watching
Jerico on TV.  Every episode starts with a burst of CW - a little message
pertinent to that episode.  The code is 20 - 25 wpm, about half in the noise
and not well sent.

But, with my TIVO, I can back up 8 seconds and play it again until I get it.

Ya think we could get a TIVO backup in the K3?

72/73,

Tom - KJ3D

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Re: Wish List - K3 with TIVO

Tom Hammond-3
Tom:

>Ya think we could get a TIVO backup in the K3?

It's there... if I recall, I think the K3 offers 30-seconds of RX
audio playback... maybe longer.

73,

Tom Hammond   N0SS

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