I am currently working on building a Low Noise Amplifier for my new active loop antenna project. After a lot of research I have come to the 
conclusion that I will use the base design from W7IUV, His design started from the ARRL Handbook. I also found an updated variant from Karezo.

Firstly let me give credit to both.

After reading the full blub that Larry (W7IUV) has available on the internet, I decided to build my own with a few further modifications
and add ons. I have included two versions of PCB's as shown here:-

One version I am using standard components and the other is using SMD components. Some of which are a little difficult to come by in my area,
so I am waiting for them to arrive from OS. I will update this section as the project delevops.

Modifications:-

* Each board has an option to either use the 2N5109 (If you can still find them) or the DCP68-25, which are easy to find.
* Option to use the LNA with a 12v dc input, or feed power via a Bias Tee through the coax. This is done via selection on a jumper.
* Karezo, introduced the use of a bypass relay in the circuit, so when dc is tuned off (via either method) the LNA is in Bypass Mode, so to say.
    I have also included this on my schematic.
    
* The final modification requires a little explanation.

Larry (W7IUV) mentioned in his notes, that the LNA will work with the volatge down to 5v, with a recomendation to be around 8v supply.
This takes the pressure off (Heat) from the 2N5109. Having a Bias Tee to work around 8 volts is not difficult, however, if your like me,just about
everything I have is around the 12v mark, so I included a DC step down circuit using the LM2596S regulator. I chose this instead of a 7808
voltage regulator, once again, to keep the heat down. Basically it is a buck circuit. The circuit has a variable pot so you can adjust the voltage.
Now, Buck step downs can produce noise because of there oscilation frequency on the LM2596S, so I added a noise filter to the design, that keeps this
in check.

Once I have finnished building and testing the boards, it's time to start on the loop, of which I update here. You can find the PDF to the schematic
here. Also if anyone wants I can also include links to the Gerber files for both boards here.

73's for now.
VK4ZXX.