[R-390] R: cv-1982 ssb converter

Fri Jul 17 16:59:24 EDT 2020

Hi I have had a CV-1982 in my shack for some years and was a good SSB
demodulator for R-390A/URR, but really not necessary if you employ a diode
bridge between AGC (3,4 neg)  (GND 16 pos.) (10 with a resisto r 600 ohm -
10 Kohm 1 W) and (13) on the rear strip. 73 de Federico IZ1FID

-----Messaggio originale-----
Da: r-390-bounces at mailman.qth.net <r-390-bounces at mailman.qth.net> Per conto
di D. Resor
Inviato: venerdì, 17. luglio 2020 14:21
A: 'Phil' <pmills7 at comcast.net>; 'R-390' <r-390 at mailman.qth.net>
Oggetto: Re: [R-390] cv-1982 ssb converter

Looking at the images:

It appears to be Nuvistors of the 7587 (of which there appears to be a total
of 12).  There are also 8056s and 7895s.  From the scan of the brochure it
is mentioned that transistors are also used.

I could not find any information in an online search.  BAMA and the Radio
Museum has no data either.

Don Resor

-----Original Message-----
From: r-390-bounces at mailman.qth.net <r-390-bounces at mailman.qth.net> On
Behalf Of Phil
Sent: Friday, July 17, 2020 4:26 AM
To: R-390 <r-390 at mailman.qth.net>
Subject: [R-390] cv-1982 ssb converter

There's one on Ebay at

https://www.ebay.com/itm/Kahn-Research-Labs-CV-1982-TSC-26-SSB-Converter-for
-R-390-RARE/193578225523?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2060353.m143
8.l2649

Is anyone familiar with it?  Tube complement?

thanks, Phil   W5BVB

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