[ARC5] Radar

[brooke at pacific.net]

Hi Tom:

That's a great think to have operational.  The web pages mention and you
can see that the torpedo firing station is close by, that one of the uses
is related to torpedo operation.  Can you elaborate on how that works.  I
don't think it's a good idea for it to be operational.  hi hi

Have Fun,

Brooke Clarke, N6GCE
http://www.PRC68.com

> John,
>
> I received the below from a friend that monitors the arc5 list. He knew I
> did the WWII radar
> restoration aboard the submarine USS COBIA. As far as we know the boats
> SJ-1
> surface
> search unit, that is now in full operation just as it was during the 7 war
> patrols that the boat
> went on, is the worlds oldest operating radar. There are units that have
> older parts but none
> (as far as I know) are in full operation. It was a real delight doing the
> work. It took about
> 6 months of restoration according the museum rules, which mean that the
> unit
> can't have
> any of its design changed...I could use newer parts like caps, resistors,
> etc. I agree with
> one the of the below comments:  after you really get into the design of
> some
> of the radar
> circuits you find that the guys that did the original work were
> really,really,really smart.
>
> If you know of any SJ parts let me know: we are always looking for spares.
> See
> http://usscobia.com for operating pictures as well as a needed tube list.
>
> Regards,
>
> Tom Aschenbrenner
> WA9EXS
>
>
>
> -----Original Message-----
> From: arc5-bounces at mailman.qth.net [mailto:arc5-bounces at mailman.qth.net]On
> Behalf Of J. Forster
> Sent: Saturday, April 11, 2009 6:51 PM
> To: kgordon2006 at verizon.net
> Cc: arc5 at mailman.qth.net; J. Forster
> Subject: Re: [ARC5] T-19
>
>
> I've long (>45 years> been interested in radars and have a very modest
> collection. I've tried to collect complete systems, BTW.
>
> But most is lost or soon will be lost, which is very sad.  If you are
> interested in preserving some of the things, please drop me a note, off
> line.
>
> -John
>
>
>
>
>> On 11 Apr 2009 at 10:53, J. Forster wrote:
>>
>>> It is ironic IMO that the only systems that have survived are those
>>> that were used as parts mules or "converted" to ham use. Much of the
>>> really advanced systems were crushed for scrap, etc.
>>
>> Sigh...I feel the same way.
>>
>> Radar, for instance.
>>
>> Practically everything connected with that was so ingenious
>> it amazes me every time I find out something new about it.
>>
>> Ken W7EKB
>
>
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