[Boatanchors] Wanted

[Richard Knoppow]

----- Original Message ----- 
From: "Richard Knoppow" <1oldlens1 at ix.netcom.com>
To: "GARY BROWN" <XFRMRS at ROADRUNNER.COM>; 
<boatanchors at mailman.qth.net>
Sent: Sunday, April 13, 2014 8:16 AM
Subject: Re: [Boatanchors] Wanted


>
> ----- Original Message ----- 
> From: "GARY BROWN" <XFRMRS at ROADRUNNER.COM>
> To: <boatanchors at mailman.qth.net>
> Sent: Sunday, April 13, 2014 5:03 AM
> Subject: [Boatanchors] Wanted
>
>
>> Looking for a manual for the RCA, CR-88A. The BAMA site 
>> has one for the CR-88 and the schematic is way to small 
>> for my eyes.
>> Regards,
>> Gary
>
>     There may be a link from the Western Historic Radio 
> Museum site  http://www.radioblvd.com/index.html
>     There is more information including a chart showing 
> the various versions at:
> http://www.qsl.net/w2vtm/AR88_Information_Page.html
>
>   This site also has a very extensive section on the AR-88 
> series.
>
     Correction: it is the radioblvd site that is referred 
to above as having a large section of the RCA receivers, not 
the qsl site.

    I also forgot Nick Englund's Navy Radio site to which he 
has directed you in another post.
    The D version of the AR-88 had the AVC brought out the 
back on terminals for use in simple diversity set ups.  The 
F and CR-88A have more extensive modifications, in 
particular:
An IF monitor output.
A diode load connection
AVC connections on the back
Modified AVC bias ciecuit
IF gain trimmer on front panel.
None of the diversity receivers have S-meters. The signal 
strength is monitored by a separate metering panel in the 
diversity rack.
    Few wartime receivers had S-meters, supposedly they were 
in short supply and were not necessary. If you can find a 
meter and mounting hardware they are easy to install. 
Receivers without meters have an illuminated panel in place 
of the meter. The lamp in the bracket for the label is used 
for the meter if one is later installed.
    On the AR-88F and CR-88A the hole in the back panel for 
the meter adjusting pot is used for the IF monitor 
connector.


--
Richard Knoppow
Los Angeles
WB6KBL
dickburk at ix.netcom.com