Geoff...
You are correct about the on-board support battery, which on s/n prior to
585-395 required the addition of a charging circuit.
I was referring to the Dallas MC146818AP Rom/Rom/Rtc chip on the daughter
board, which has its own battery and lasts for 10+ years at worst.
It is possible some of the Paragons had other than Dallas chips, and some of
them did not have on-chip batteries.
Check out: http://www.informit.com/articles/article.aspx?p=30273&seqNum=15
Sorry for the confusion.
Phil C. Sr.
k4dpk
----- Original Message -----
From: "geoffrey mendelson" <geoffreymendelson@gmail.com>
To: "Discussion of Ten-Tec Equipment" <tentec@contesting.com>
Sent: Monday, May 24, 2010 4:51 PM
Subject: Re: [TenTec] Paragon - easy to work on?
>
> On May 24, 2010, at 11:00 PM, Phil Chambley Sr. wrote:
>
>>
>> The battery in the Paragon is inside one of the chips on a daughter
>> board at
>> the rear of the Logic board, and I saw an outfit on the internet
>> (something
>> like Batteries R Us :) that had those. You'll need to search on
>> battery
>> sites with that chip number.
>
>
>
> The Pargaon came with two versions of the battery. The earlier one
> used a standard 9v battery. The later one added a charging circuit and
> replaced the battery with a 9v NiCad.
>
> I did a quick web search and found this page:
>
> http://www.unicorn-meadow.com/radio/Paragon.html
>
> If you look at the picture of the rig being placed on the bench for
> the first time, you can see the battery quite clearly in the center of
> the radio (from right to left) in the rear. If you look at the front
> just left of the display, and follow it back, you'll see it.
>
> He also discusses the charging modification later in the text.
>
> 73,
>
> Geoff.
>
>
> --
> geoffrey mendelson N3OWJ/4X1GM
> Jerusalem Israel geoffreymendelson@gmail.com
> New word I coined 12/13/09, "Sub-Wikipedia" adj, describing knowledge
> or understanding, as in he has a sub-wikipedia understanding of the
> situation. i.e possessing less facts or information than can be found
> in the Wikipedia.
>
>
>
>
>
>
> _______________________________________________
> TenTec mailing list
> TenTec@contesting.com
> http://lists.contesting.com/mailman/listinfo/tentec
>
_______________________________________________
TenTec mailing list
TenTec@contesting.com
http://lists.contesting.com/mailman/listinfo/tentec
|