[ARC5] Command set history

[Henry Mei'l's]

Mike,
I've reread my mail a couple of times  and I can see it l was not as precise 
as it might have been and could easlily be interpreted as my asking about 
the general Command Set history.
I try to be very precise but at the same time try not be tiresome by 
overdoing it with too much detail.

73, Henry


----- Original Message ----- 
From: "Mike Morrow" <kk5f at earthlink.net>
To: <arc5 at mailman.qth.net>
Sent: Sunday, September 26, 2010 7:33 PM
Subject: [ARC5] Command set history


> Henry wrote:
>
>>It's an "R-23/ARC-5
>>           NOs 74912  6657 CBY".
>
> In addition to the R-23 (and R-23A) and the R-148 that Robert mentioned, 
> the
> only other 190 to 550 kc receivers that had loop connections are the very 
> rare
> CBY-46102 of the RAV system (push terminals), and the R-11A of the 
> post-WWII
> A.R.C. Type 12 system (BNC).  The R-11A would not make a good "Q5er" 
> because
> it lacks a BFO.
>
>>Now that I've precisely identified my unit, maybe you can tell me 
>>something
>>about its history.
>
> You can begin with list member Gordon White's November 1964 CQ Magazine
> article at http://www.scr-274-n.info/css.pdf .  Gordon wrote a wonderful
> series of surplus-related articles which were the only real reasons to buy
> CQ, 45 years ago.
>
> You may also find the information at http://en.wikipedia.org/wiki/ARC-5
> to be of interest.
>
> There are very many related web resourses to be found.
>
>>I was just using the term 'BC-453' loosely as a kind of generic reference.
>
> On a forum with people who collect and study this equipment, imprecise
> terminolgy may lead to miscommunication.
>
> For example, there are moderate differences between the ARA/ATA and the
> SCR-274-N systems, significant differences between receiver components of
> the ARA or SCR-274-N and receiver components of the AN/ARC-5, and *very*
> significant differences between transmitter components of the ATA or
> SCR-274-N and transmitter components of the AN/ARC-5.  One must often know
> the specific model to be able to comment accurately on a particular issue
> related to an ARA/ATA, SCR-274-N, or AN/ARC-5 component.
>
> Mike / KK5F
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