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Re: [TenTec] Need Circuit Breaker for Century 22

To: geraldj@storm.weather.net, Discussion of Ten-Tec Equipment <tentec@contesting.com>
Subject: Re: [TenTec] Need Circuit Breaker for Century 22
From: Bwana Bob <wb2vuf@gti.net>
Reply-to: wb2vuf@arrl.net, Discussion of Ten-Tec Equipment <tentec@contesting.com>
Date: Wed, 30 Apr 2008 12:36:37 -0400
List-post: <tentec@contesting.com">mailto:tentec@contesting.com>
Most people seem to get their Airpax breakers from Poco sales or one of 
the marine electronics suppliers. Poco has a $25 minimum order, so you 
may need to buy 3 breakers.


                                73,

                                Bob WB2VUF

Dr. Gerald N. Johnson wrote:
> On Mon, 2008-04-28 at 12:59 -0400, Cal Cotner wrote:
>> Hi all,
>>       I recently bought a Century 22, and I'd like to acquire one of  
>> the fast acting circuit breakers used with it so I may power the  
>> Century 22 from a battery.  The Ten Tec part number of this breaker  
>> is 1179.  If anyone has a spare one of these breakers, I'd be  
>> interested in buying it.  AIRPAX was the manufacturer of these  
>> circuit breakers, and an equivalent AIRPAX device would also suit me  
>> just fine.  FWIW, the characteristics of the required circuit breaker  
>> are 5.00 Amps continuous current, with a trip current of 6.25  
>> Amperes.  The AIRPAX trip characteristic I'd need is, I believe,  
>> either "0" or "1".
>> 73,
>> Cal K4JSI
> 
> There are vendors selling Airpax that may help. A google search on
> Airpax fast breakers might turn up a surplus source. There are many
> packages with the same speed of operation. 
> 
> For my Corsair II, I've been successful in protecting the PA with fast
> acting fuses chosen to be run close to their blowing point. For that
> nominally 20 amp circuit I use a 16 amp automotive type MTA fuse. So for
> the Century 22, a 4 amp fast acting fuse would be appropriate. Something
> in a miniature or large automotive fuse or type AGC or ABC.
> 
> 73, Jerry, K0CQ
> 
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