Topband: Insulator problems

[Herb Schoenbohm]

Thanks Tim.  I might try one of these if I can get them to send them in 
single unit quantities.  The one I currently use is a bowl type but 
about 3 inches on the flange. I guess for a 160 ATU I should be able to 
punch a new hole through the metal box and get it to work.  The one 
presently there was all that was left of a motorized 2-30 Mhz automatic 
ATU for which I just retained the Vacuum Cap and put in my own 6 inch 
flat wound AM coil.  It was made in Ft. Lauderdale, FL over 40 years ago 
but the beehive feed through was made from some glazed bead like 
material which must soak up water like a sponge although so far has not 
failed in my tower's wire cage feed tuning box at the base.  I had even 
considered replacing it with a small necked rum bottle glued into the 
original hole.  But the idea of a large porcelain replacement would look 
so much better.

73,


Herb Schoenbohm, KV4FZ





On 12/17/2013 3:30 PM, Shoppa, Tim wrote:
> Some of the old-school ham radio suppliers sell/stock Daburn porcelain insulators, or you can get them direct from Daburn.  e.g. Daburn 10-52: http://www.daburn.com/10-58ceramicfeed-thruinsulators.aspx
>
> Tim N3QE
> ________________________________________
> From: Topband [topband-bounces at contesting.com] on behalf of Herb Schoenbohm [herbs at vitelcom.net]
> Sent: Tuesday, December 17, 2013 2:19 PM
> To: topband at contesting.com
> Subject: Re: Topband: Insulator problems
>
> My 160 meter ATU uses an old military box with the  original behive feed
> thru insulator that is starting to crumble.  I haven't been able to find
> a pocelin feed thu of that size (about 3'') and the ones on e bay are
> very small.  Any suggestions for a source?
>
>
> Herb Schoenbohm, KV4FZ
>
>
>
>
>
>
>
>
>
> On 12/17/2013 3:09 PM, W9UCW at aol.com wrote:
>> When I lost my last set of monster buss bar ceramic  insulators to breakage
>> due to a broken guy line on the tower, I replaced them  with artificial
>> wood. I used 4 X 4's. It machines easily and works flawlessly  wet or dry with
>> full power even in very high voltage conditions. The material is  actually
>> made from recycled milk containers, so the factory told me. Anyone who  wants
>> a picture, I'll send it to you.
>> 73, Barry W9UCW
>> _________________
>> Topband Reflector Archives - http://www.contesting.com/_topband
> _________________
> Topband Reflector Archives - http://www.contesting.com/_topband