[R-390] CV-157

[djed1 at aol.com]

I never had one, just some CV-591As.  My understanding is that the '157 is a monster with 50 or so tubes, and was intended to process TTY on separate sidebands.  So it has all the capability to simultaneously demodulate both sidebands, and, unlike the other converters, has an electromechanical system to tune out any drift.  The tuner may require a reduced carrier.  Pics of the thing show IIRC two full rack panels.
It's certainly a novelty, but it will be a LOT of work to get it up on the bench and get it working.
Good luck with it
Ed  W2EMN

 

 

 

-----Original Message-----
From: polaraligned <polaraligned at optonline.net>
To: r-390 <r-390 at mailman.qth.net>
Sent: Mon, Oct 15, 2012 6:22 am
Subject: [R-390] CV-157


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  


Any input is appreciated.  

Scott

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