Because my three position coax switch (MFJ 1702B a/b/open) became a bit
erratically open, I took it apart and am dismayed at what I see.
First, It has a nice cam action that holds the open opposite input (a/b)
contact
about 1/4 inch open. The contacts appear to be nice 1/8" round welded to a
springy metal about 1 1/4" long with a fair amount of pressure on the
contact.
However, the contacts were only making at the far tip of each i.e. the 1
1/4 inch
metal needed to be bent more at the far end in order to make full contact.
Also, one contact was offset so that about 20% of the contact would miss
the center common contact post.
I assume that the design is good or adequate, but the workmanship was
poor. In fairness, I don't know if it came from the factory that way as it
was
purchased at least second hand.
k7puc
----- Original Message -----
From: "FireBrick" <w9ol@billnjudy.com>
To: "TowerTalk List" <towertalk@contesting.com>
Sent: Tuesday, January 22, 2002 8:57 AM
Subject: [TowerTalk] So which is the best switch
>
> Following the thread on antenna switches.
> So for a inside the shack, multi coax/ant. switch. Who makes the
> best/strongest/most reliable that is of a reasonable price for amateurs.
>
________________________________________________________________________
Where do you get ICE bandpass filters & beverage matching boxes? The
same place that pays for the hosting of this list: The eHam Store.
Order online at http://store.eham.net.
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