My old Alpha 86 cooling chimneys are 1/8". But the thickness
doesn't really matter for cooling as long as it forms the required shape.
The thicker stuff might allow gluing/fastening it end-to-end instead
of overlapping, then gluing, etc.
73,
Charlie, N0TT
On Wed, 27 Aug 2008 22:08:36 -0400 "Roger" <sub1@rogerhalstead.com>
writes:
>
>
>
> > .1875 is 3/16" thick. Seems a little thick for an 8874 chimney?
> > Good price though.
>
> That's pretty close to what Alpha uses. It's at least an 1/8" and
> might be
> 3/16". Mine is out in the shop and I'm too lazy to go out, open up
> the
> cabinet and measure it. <:-))
>
> 73
>
> Roger (K8RI)
> >
> >
> >
> > 73
> > Jim W7RY
> >
> > ----- Original Message -----
> > From: Bob Maser
> > To: AMPS
> > Sent: Wednesday, August 27, 2008 5:43 PM
> > Subject: [Amps] Silicone Rubber Sheets
> >
> >
> > I still have some Silicone rubber sheets available. They measure
> 26" x
> > 12"
> > x .1875" thick This is great for making chimneys for ceramic
> amplifier
> > tubes as this material will handle 450*F. McMaster Carr sells 1
> sq foot
> > of
> > this stuff for $30 plus shipping. My price is $20 per sheet + a
> flat
> > rate
> > $10 shipping for up to 4 sheets( that's the max that will fit
> into the US
> > Priority Mail Flat Rate box.
> >
> > 73 Bob W6TR
> >
> > _______________________________________________
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> > Amps mailing list
> > Amps@contesting.com
> > http://lists.contesting.com/mailman/listinfo/amps
>
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>
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