[amsat-bb] Re: Landwehr 70cm preamp device question?

i8cvs domenico.i8cvs at tin.it
Tue May 31 12:49:58 PDT 2011

----- Original Message ----- 
From: "Mark L. Hammond" <marklhammond at gmail.com>
To: "Amsat - BBs" <amsat-bb at amsat.org>
Sent: Tuesday, May 31, 2011 8:00 PM
Subject: [amsat-bb] Landwehr 70cm preamp device question?

> Hello All,
> I have an old Landwehr preamp that apparently uses the MGF1402 device
> (does that sound right?).  It's not working so I presume it's the
> GaAsFET.
> Can the MGF1302 be substituted for the original MGF1402?  Or can
> anybody recommend another device for the 70 cm Landwehr?
> I need to do something...
> Thanks in advance!
> -- 
> Mark L. Hammond [N8MH]

Hi Mark, N8MH

The MGF 14......types are MIL versions (Hi-Rel) of the MGF 13..... and
MGF 19..... and so "apparently" the MGF 1402 can be repleced by a
MGF 1302 with minor current adjustement for the lowest Noise Figure

By the way  the MGF 1402 can be directly replaced by a ATF 26550
or MGF 1412 available at 9,30 Euro's from


Look at the Catalog and then click over GaAsFET and FET 

If you contact Franco Rota of the above rfmicrowave company I am
sure that he has few MGF 1402 at stock 

You can pay it with credit card and get the GaAsFET in a few days
by regular post.

73" de

i8CVS Domenico

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