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[Amps] QRO-Stuff

To: amps@contesting.com
Subject: [Amps] QRO-Stuff
From: Pete Smith <n4zr@contesting.com>
Date: Wed, 27 Jun 2007 15:02:33 -0400
List-post: <mailto:amps@contesting.com>
Some of their prices are very attractive, but I wonder if anyone has had 
experience, good or otherwise, with this particular seller.  They claim to 
have warehousing in Texas and offer fast service from 
there.  http://stores.ebay.com/QRO-Stuff-Store

73, Pete N4ZR

At 01:36 PM 6/27/2007, David Cutter wrote:
>I saw a lot of these relays at Friedrichshafen for Euro15 last weekend.
>
>David
>G3UNA
>
>
>----- Original Message -----
>From: "Guido Tedeschi" <guidoted@gmail.com>
>To: "Tom W8JI" <w8ji@w8ji.com>
>Cc: <amps@contesting.com>
>Sent: Wednesday, June 27, 2007 10:48 AM
>Subject: Re: [Amps] Relais for an antenna crossover switch
>
>
> > Thanks to all for the answers.
> >
> > The things are changed, because now I have twelve SPST W2W vacuum
> > relais like this:
> > http://tinyurl.com/37uv8r
> >
> > So, I changed my schematic to this one, with only six 30A relais
> > instead of 12 and which is also safe for the radios.
> > The new schematic is this:
> > http://www.hamlan.org/maco/macosafe.pdf
> >
> > I opened the 30A relay and I took some pictures, take a look:
> > http://www.hamlan.org/maco/668290120000_1.jpg
> > http://www.hamlan.org/maco/668290120000_2.jpg
> > http://www.hamlan.org/maco/668290120000_3.jpg
> >
> > It seems that there are some good and bad things:
> > 1) short wide leads to contacts
> > 2) the spacing between contacts and/or coil seems good
> > 3) the contacts area seems not so large, especially the NC contacts
> > (but I will use two in parallel)
> > 4) when the coil is energized, the moving contact press the NO fixed
> > contact using only its elastic force (not pressed by the armature)
> > 5) when the coil is not energized, the moving contact press the NC
> > fixed contact using the elastic force of the armature (it is pressed
> > by the released armature)
> >
> > I searched for "relay" on towertalk (very good mailing list, I will
> > subscribe also to that one!) and I found many very interesting
> > messages (many from Tom) about relais and RF.
> >
> > Tom, what kind of error you have opening my links?
> >
> > Thank you very much to all.
> > Ciao and 73
> > Guido, ik2bcp
> > _______________________________________________
> > Amps mailing list
> > Amps@contesting.com
> > http://lists.contesting.com/mailman/listinfo/amps
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