> > > Message: 2 > Date: Mon, 5 Sep 2016 19:48:14 -0700 > From: "Richard (Rick) Karlquist" <richard@karlquist.com> > To: Discussion of precise time and frequency measurement > <time-nuts@febo.com> > Subject: [time-nuts] Hobbyist grade or homebrew temperature testing > chamber? > Message-ID: <4fb2f3cd-7509-4873-b21f-300161d0b281@karlquist.com> > Content-Type: text/plain; charset=utf-8; format=flowed > > As we all know, step #1 in making a clock is NOT > to build a thermometer :-) > > I thought I would check the brain trust here to see > if anyone has seen a hobbyist grade temperature > testing chamber or kit or homebrew design. I > have some crystals, oscillators, and other > electronics I would like to characterize over > temperature. I know this reflector has discussed > homebrew stabilization ovens; however, they > have tended to have very long time constants > (which makes sense for that application). I > need to be able to change temperature in a > reasonable amount of time, and I don't need > extreme stability. Looking for any ideas, > maybe in the "maker" spirit. I think the > size I need would be perhaps 1/2 the size > of a shoebox. > > BTW, in case someone has a chamber to sell, > let me know... > > Rick Karlquist N6RK > > > If you need a heater strip, I am a satisfied and repeat customer of Minco. They make polyimide resistive heating elements that can put a lot of Q into something. http://www.minco.com/Products/Heat design guide: http://www.minco.com/components/~/media/WWW/Resource%20Library/Heaters/Heater%20Design%20Guide.ashx?la=en -- christopher 73 de AI6KG