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QCX Build in a ALU case

 

HI All. I am 99% complete on my 40m QCX build,

Here is the inside of the case, see the speaker and its amp board, borrowed 5v from the gps socket for it, It came from a Dell Optiplex. It is wired into the switched phone jack so turns off when headphone are plugged in. I did try running it without the amp but has to turn the gain ot so high that the amps started clipping...

I am very happy with the result. The LCD is a good 11mm higher off the main board, I used a set of Arduino Stackable header pins to extend the LCD pins, Lifted it the perfect hight. The LCD is mounted to the lid, 4mm hex nuts are "JB welded" (metal epoxy) to the cover, and lcd fastend to this...

Also using a switched pot for GAIN knob and power on/off...



I did the speaker holes using a perf board as a template, then deburred with a slightly bigger drill, gave a nice chamfered edge. Once I have built the other 2 kits I will do some decals...




73 Nick, VK4PLN
 

Nick,

Looking good.

ken - wa4mnt
 

Respect Nick .

Well done .

73 John PD7MAA
 

Thanks John, It was your build that inspired me. Good find on the caseing.
73
 

If I had to build my 40m QCX all over again, this is the route I would follow.

Neat! Well done.

73 de Eddie ZS6BNE
Anatoly G
 

Hi Nick!

My congratulations! Your solution is much better then I've ment before!
Would you be so kind to send me address where you bought that nice case?

73!
Anatoly
UT5ULX
 

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Very nice build Nick. After looking at all the inventive build approaches that people have used, I will build mine the same way but without the built-in speaker.? I like your idea of using stackable Arduino headers to extend the LCD pins. I already have some here. I also like the fact that you can push down instead of from the side, and it is really compact and solid.
-Steve, K1RF
?

Sent: Monday, December 04, 2017 5:04 PM
Subject: Re: [QRPLabs] QCX Build in a ALU case
?
HI All. I am 99% complete on my 40m QCX build,

Here is the inside of the case, see the speaker and its amp board, borrowed 5v from the gps socket for it, It came from a Dell Optiplex. It is wired into the switched phone jack so turns off when headphone are plugged in. I did try running it without the amp but has to turn the gain ot so high that the amps started clipping...

I am very happy with the result. The LCD is a good 11mm higher off the main board, I used a set of Arduino Stackable header pins to extend the LCD pins, Lifted it the perfect hight. The LCD is mounted to the lid, 4mm hex nuts are "JB welded" (metal epoxy) to the cover, and lcd fastend to this...

Also using a switched pot for GAIN knob and power on/off...



I did the speaker holes using a perf board as a template, then deburred with a slightly bigger drill, gave a nice chamfered edge. Once I have built the other 2 kits I will do some decals...




73 Nick, VK4PLN

Virus-free.

 

Here is the exact item i bought:

 

Also love the compact solid build, very nice work! Now if only there were a way to access the micro-switch straight key. I don't suppose anyone has any ideas on that?
 

? :-)
 

Now I was contemplating building one of the QRP Guys paddles for the KX3 and modding it to fit into and on top of the key jack on the right... Or just building a DIY paddle from some double sided PCB...


73, VK4PLN
 

Beautiful work, Nick!? Great job.? It looks very professional.?

73/72,
Dean K5DH
20m QCX msn 612

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