[Milsurplus] CV-157

[antqradio at sbcglobal.net]

Somewhat confused.  The CV-157 IS an SSB converter designed for the R-390 non A.  Ray seems to say that it is a RTTY converter, if I read his comments correctly.  The CV-157 wasn't part of the GRC-26D which is the only version that had R-390's installed, as far as I know.
As for the R-390A not being a band cruser, well I think most of the problem is with the greased up clock works and binding of the mc and kc shafts when they come through the front panel.  Take a tip from the clock collectors and don't grease gears, just sparingly lube pivot points and bearings.  Properly lubed and if you will re-center those two bushings in the front panel, you will be amazed.Jim
 

      From: Ray Fantini <RAFANTINI at salisbury.edu>
 To: "milsurplus at mailman.qth.net" <milsurplus at mailman.qth.net>; "antqradio at sbcglobal.net" <antqradio at sbcglobal.net> 
 Sent: Tuesday, December 22, 2015 10:31 AM
 Subject: Re: [Milsurplus] CV-157
   
#yiv5420196334 #yiv5420196334 --P{margin-top:0;margin-bottom:0;}#yiv5420196334 Think the CV-157 would be great if your restoring an AN/GRC-26 but otherwise useless unless you want to do vintage teletype. As a SSB receiver the R-390 is lacking with or without an external SSB converter, I know this will work up all the R-390 crowd and don’t get me wrong, the R-390 is a great AM receiver and good for any fixed frequency operation but as a SSB receiver almost any commercial or military SSB radio will be smaller and more user friendly. The things that come to mind are the lack of a good AGC system in the CW mode, mechanical tuning that’s a bear to band cruse with and unless your into rack mounted equipment size and weight that’s an issue. So myself I would not bother with a CV-157But that’s just me, opinions will vary!
Ray F/KA3EKH  
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