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THE AM BULLETIN BOARD => Technical Forum => Topic started by: PA4WM on December 09, 2012, 10:25:56 AM



Title: Ceramic stand off and feedthrough
Post by: PA4WM on December 09, 2012, 10:25:56 AM
Hi all,

It's been awhile, but a few month ago, in topic I don't remember,
someone in this forum replied with a link to a company (US) that still makes "vintage" stand-offs and feedthroughs.

I've been looking through old posts and used the search engine, but havent' been lucky sofar.

Does anyone remember the post, or have an idea wich company that was...

Thanks,

Martin, PA4WM




Title: Re: Ceramic stand off and feedthrough
Post by: KA0HCP on December 09, 2012, 11:31:04 AM
http://www.daburn.com/

Daburn Electronics

Here you go, Martin!

Bill


Title: Re: Ceramic stand off and feedthrough
Post by: PA4WM on December 09, 2012, 01:15:17 PM
Thank you Bill.

That's the one.

Martin.


Title: Re: Ceramic stand off and feedthrough
Post by: W4NEQ on December 09, 2012, 05:26:00 PM
Dadburnit, Daburn wants $4 each for 2 inch OWL insulators. Geez.  I wonder if they're selling any.

Chris


Title: Re: Ceramic stand off and feedthrough
Post by: Opcom on December 09, 2012, 11:42:44 PM
$4 is cheap when the word "airplane" appears on the same page as some of the insulators are listed.


Title: Re: Ceramic stand off and feedthrough
Post by: K6IC on December 10, 2012, 02:59:14 PM
And,  hope that Danburn has some dealers,  as most of the ceramic items that I looked at had minimum-order quantities of 25 - 50 ea -- many hundred$ to over 1.5 K-buck in some cases.

To bring up a bit of a sore subject,  MFJ uses some feed-throughs.  In a quick on-line but could not find their parts section.  These probably would not stand up to Plate modulated HV feeding-through,   but might be OK for some applications.  Am almost certain that these would be made in the least expensive part of Asia,  but,   ...   YMMV,  GL,  Vic


Title: Re: Ceramic stand off and feedthrough
Post by: KA0HCP on December 10, 2012, 03:20:28 PM
For quantities less than 25, there is a asterisk not that says "Call for quantities less than 25".

Looks like they are accommodating but, don't put huge effort into their web ordering format.


Title: Re: Ceramic stand off and feedthrough
Post by: K6IC on December 10, 2012, 10:58:06 PM
For quantities less than 25, there is a asterisk not that says "Call for quantities less than 25".

Looks like they are accommodating but, don't put huge effort into their web ordering format.


OH,  never mind ...  vision is going ..  Thanks . Vic


Title: Re: Ceramic stand off and feedthrough
Post by: KM1H on December 11, 2012, 08:43:00 PM
Send me a PM of what you need using US dimensions please. I have all sorts of ceramics.
Old part numbers from HH Smith, National, Johnson, Millen, etc would help.

Carl
AMfone - Dedicated to Amplitude Modulation on the Amateur Radio Bands