[R-390] CV-157

[Nick England]

Well they are interestingly complicated. And they certainly are boatanchors. Even without the pwr xfmr it'll be 100 lbs. 
I really enjoyed restoring mine and learning all about it. Your friends will definitely be amazed watching the AFC motor do its thing. And being able to do simultaneous USB and LSB is kinda neat. 
But practically speaking the CV-591 is much much easier to restore and operate and move around. I have both hooked up and don't really hear any difference in voice quality. 

The CV-157 is a star because of the AFC and ISB capabilities but that's not anything you can make use of on the air today. 

Value? I think I paid $100 ea for the two I have. One was local and the other cost me another $100 in shipping. Basically the value to the other guy is what he could get parting it out. 

If you like technical challenges and enjoy learning new circuitry it is a great project even if the CV-591 is much more practical. 
My opinion for what it's worth. 
Nick
(phone email acct)


On Oct 15, 2012, at 6:21 AM, polaraligned at optonline.net wrote:

> I have first shot at one of these.  It is missing it’s meters and from what I am told, a HV power transformer.  Otherwise it is supposedly complete and I have seen pics of the front panel and it looks clean.  
> 
> Big question for me is are these worthwhile compared to some of the other SSB converters?  I can’t find much info, but what I did find makes these out to be a dinosaur.  
> 
> How much is one of these worth?   You can PM me at R390 at optonline.net  
>