Hello Francesco

Reading the articles, I see that the author of the original article in The Netherlands and OZ1PIF have both produced PCBs for the design. It may be worth an e-mail to them both to find out the current situation. - But I get the impression they are now out of stock

If they have sold out, then you may be able to take the PCB for my 70 and 23CM version and adapt it for their 2m design. A quick look suggests that the biasing is similar although the input circuit is different. I did try a 2m version about a year ago, but the foil trimmers I used caused instability. A decent piston type trimmer as used by OZ1PIF would be a much better choice. The 0.8mm FR4 board design and details of the G0MRF 70cm amp can be found at:

_http://www.g0mrf.freeserve.co.uk/432LNA.htm_ (http://www.g0mrf.freeserve.co.uk/432LNA.htm)

73

David

In a message dated 1/2/2007 5:14:09 PM GMT Standard Time, iz5dwf@amsat.org writes:

Hello David & group

On Tue, 2 Jan 2007 G0MRF@aol.com wrote:

Hi Tyler.

The MGF1402 is an expensive option these days.

You may want to have a look at this 2m design which will give you 0.3 to 0.4dB noise figure.

_http://www.frenning.dk/OZ1PIF_HOMEPAGE/144_and_432MHz-LNA.htm_ (http://www.frenning.dk/OZ1PIF_HOMEPAGE/144_and_432MHz-LNA.htm)

very interesting! Do you know if someone is still selling the pcb for it?

73 es hny

Francesco IS0FKQ