[HBR] High-carb link LEXAN DENCO COILS microwave test

Rob roomberg at ptd.net
Mon Oct 19 01:46:26 EDT 2015


Yes... been there with epoxy glue I used as antenna element isolators.
I filled a cup with glue and microwaved it after it got hard to see if
it warmed up.
It definitely warmed but not a lot.
Nothing like a tea cup of water.
  




Something I remember from "Ye Olden Daze" is that whatever material you 
intend to use FOR the coilform - put it in a microwave for about a
minute 
(on High).  If it gets hot, don't use it... the reason is obvious.

Tom - W0EAJ 




On Sun, 2015-10-18 at 19:29 -0400, Rob wrote:
> Have you used LEXAN to make DENCO coils like these:
> http://www.learnmorsecode.com/denco/index.html
> 
> 
> 
> 
> 
> 
> -10-18 at 22:22 +0000, Shoppa, Tim wrote:
> > At the other end of the spectrum, I'm highly in favor of high carb (that is, polycarbonate) coil forms.  Polycarbonate is easy to work with regualr woodworking tools and does not crack like acrylic.
> > 
> > Some links:
> > 
> > http://www.usplastic.com/catalog/item.aspx?itemid=23791
> > 
> > http://www.mcmaster.com/#polycarbonate/=zfbyo6
> > 
> > http://www.eplastics.com/Lexan_Polycarbonate_Tube
> > 
> > Tim N3QE
> > 
> > ________________________________________
> > From: HBR [hbr-bounces at mailman.qth.net] on behalf of Brian Burns [brian at lessonsinlutherie.com]
> > Sent: Sunday, October 18, 2015 4:13 PM
> > To: 'HBR Receiver List'
> > Subject: [HBR] Revised Low-carb links
> > 
> > Hello All,
> > 
> > 
> > 
> > I just discovered that the last internet link on my collection of low-carb
> > links goes to my purchase of a Hickok VTVM on Ebay---honest, I didn't mean
> > to gloat! If you would like a copy of the revised list of links, just email
> > me off or on the list and I'll send it along.
> > 
> > 
> > 
> > Cheers,
> > 
> > 
> > 
> > Brian Burns
> > 
> > 
> > 
> > 
> > 
> > 
> > 
> > ---
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