[R-390] What is the difference between 390 and 390A

[Rbethman]

Well, this has become VERY like many other threads WE have done over the 
past.

It has become worn out.

As to the differences between the R-390 and the R-390A, I have serious 
doubts as to our abilities to SIGNIFICANTLY quantify them.

Both work extremely well.  Both pull in signals that other radios aren't 
capable of - even today.

They stand up to use, abuse, and abhorrent conditions that will kill 
most anything else.

I have owned 2 R-390As, one '51 Collins, with all Collins modules EXCEPT 
for a Cosmos PTO.  Module S/Ns ran from 35 to 200.  The other one was a 
'67 EAC.  Both worked equally well.

I traded off the '67 EAC for a Northern Radio modified SP-600.  I DO 
like the 600's audio better, it IS easier to cruise the bands without 
having to jump ever MC.  BUT - I don't think it receives as well.

Bob - N0DGN

                       Bob Bethman - N0DGN
+-------------------------------+----------------------------------+
| N0DGN AMRadio Manassas, VA    |    REAL Tube Radio and AM        |
+-------------------------------+----------------------------------+
|       Manassas Radio - Home of Homemade Kielbasa & Pirogi        |
+-------------------------------+----------------------------------+
| Bob Bethman                \\\|///     " The absence of a danger |
| rbethman(at)comcast.net   \\ ~ ~ //      signal does *NOT* mean  |
|                           (/ @ @ /)      that everything is OK " |
+-------------------------oOOo-(_)-oOOo----------------------------+
|               <http://home.comcast.net/~rbethman>                |
| 1 BC-610I w/BC-614I,1 T-213/GRC-26 w/BC614I 1 '51 Collins R-390A |
|  SP-600/NR Type 159, Heath DX-60, Apache, Mohawk, SX-101, HT-32A |
+------------------------------------------------------------------+
|           Amateur Astronomer - Celestron Nexstar 8               |
|             12" f5 Dob coming soon!  Being built                 |
|                          Meade ETX-60                            |
|           38 Deg 46'48.62"' N - 77 Deg 28'26.89" W               |
+------------------------------------------------------------------+
|   Opinions expressed are that of my own and do not necessarily   |
|         coincide with or represent those of ANYONE else          |
+------------------------------------------------------------------+
|ALL E-mail received and sent scanned by AVG & Norton System Works |
+------------------------------------------------------------------+