[ARC5] Ceramic insulator beads

[jcoward5452 at aol.com]

If you solder a small washer at the ends of the lead you can prevent 
"spillage of beads".
 Jay


-----Original Message-----
From: Mike Morrow <kk5f at earthlink.net>
To: arc5 at mailman.qth.net
Sent: Fri, 27 Jun 2008 10:23 am
Subject: Re: [ARC5] Ceramic insulator beads



It seems to me that the use of many individual beads strung on a wire 
was a bad
idea.  I wonder how often a bead-covered lead broke or came loose from 
an
antenna terminal and dumped scores of the beads into the bottom of the 
airframe.

Bead use seems to have been a USAAF custom.  I don't recall seeing any 
pictures
of USN installations using the beads, nor manuals calling for their 
use.  The
USN seems to have been content with using appropriately insulated wire.

Still, for historical restoration, one has to go with what was used, no 
matter
how impractical it was.

William Donzelli ("toober" on ebay) once had supplies of IN-33 
insulator packets
that he sold or auctioned.  I don't know how many beads were in each 
packet...it
didn't look like all that many, so many packets of beads would be 
required in a
typical installation.

Mike / KK5F

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