[Boatanchors] GPR-90 Vs R-390A

[Brian Harris]

As Todd stated, there is no comparison between the two receivers.  That is not to say the GPR-90 is not a good receiver because it is.  It is just not a great receiver like the R-390A.  The drift he mentioned can be reduced by adding an always-on filament transformer for the VFO tube.   That was done to the example I have.  The sensitivity and the mechanical filters of the R-390A are hard to beat however the GPR-90, when used with the GSB-1 sideband adapter make a very usable SSB receiver.  I have that combination and their matching speaker paired with a 100V.  I wrote an article for ER (#120 April 1999)  if you want more GPR-90 info.

Brian Harris, WA5UEK

phone 214-763-5977

email cosmophone at yahoo.com

website www.myhamshack.com/wa5uek

--- On Thu, 9/10/09, Harold Hairston <k4hca at windstream.net> wrote:

From: Harold Hairston <k4hca at windstream.net>
Subject: [Boatanchors] GPR-90 Vs R-390A
To: "Boat Anchors List" <boatanchors at mailman.qth.net>
Date: Thursday, September 10, 2009, 7:10 AM

There were many Boat Anchors at the Shelby/Dallas, N.C. Hamfest this past weeknd. I saw a very nice GPR-90, first one in many years. Just wondered, from those who know, how do these two receivers compare?

Harold
______________________________________________________________
Boatanchors mailing list
Home: http://mailman.qth.net/mailman/listinfo/boatanchors
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Boatanchors at mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html